Quick verdict: I've tried every "double your FPS" guide on the internet so you don't have to, and they're all lying. The honest number: 5-15% total from software settings on a normal Windows 11 PC, with the two real winners being disabling VBS/Memory Integrity (+5-10%) and keeping drivers clean (+2-5%). The good news is those percentages stack, they're free, and they take an evening. This guide ranks every fix by actual measured impact, not by how good the headline sounds.
Affiliate disclosure: this post contains Amazon affiliate links. As an Amazon Associate I earn from qualifying purchases at no extra cost to you.
The Honest Intro: Expect 5-15%, Not Miracles
Let's set expectations before I touch a single setting. The "100 FPS boost" articles are written by people selling you things. Real testing in 2026 puts the total software-side gain on a healthy Windows 11 system at roughly 5-15%, and the spread depends on your hardware: a clean machine with a recent GPU gets less, a laptop drowning in bloat gets more.
Here's the thing nobody tells you: the biggest single lever in PC gaming is no longer the OS, it's the upscaler (DLSS, FSR, XeSS). That's a separate article, but it explains why the OS tweaks are smaller than the clickbait suggests. The OS gave up most of its gains years ago. What's left, though, is still free and still worth taking.
#1: Disable VBS/Memory Integrity (+5-10%)
This is the big one, and it's new-ish. Fresh Windows 11 installs ship with Virtualization-Based Security enabled by default, and Memory Integrity (its core isolation component) runs a hypervisor underneath your games. That hypervisor costs real frames, measured at 5-10% in 2026 testing. On some CPUs with older drivers it's worse.
The steps take two minutes:
- Open Windows Security (search "Windows Security" in the Start menu)
- Go to Device Security
- Click Core isolation details
- Toggle Memory integrity to Off
- Restart
That's it. VBS stays on, only the Memory Integrity layer (which sits on top of VBS) turns off. You can also check whether VBS is running at all: open System Information and look at the "Virtualization-based security" line. If it says "Running" or "Enabled," the fix applies to you.
The honest caveat: Memory Integrity is a security feature. It blocks certain kernel-level attacks. On a personal gaming PC with a clean browsing habit, most people judge the trade-off as worth it. On a work laptop with company data, don't touch it, and don't disable it if your IT policy says not to. That's not me being preachy, that's me not wanting your email in the news.
#2: Install KB5074109 and Every Update (Frame Pacing Fix)
Windows 11 had a frame pacing bug in 2025 that stuttered games even at high frame rates, and the fix landed as update KB5074109 in 2026. The scheduler was misreporting frame times, and the update fixes exactly that. If you've felt "my FPS counter says 144 but it looks like 90," this is the patch for you.
Go to Settings > Windows Update and check for updates. Install everything, not just the security ones. The optional driver updates are where the frame pacing and performance fixes hide. Then restart and test. If you have a VRR monitor, pair this with the frame limiter setup in our G-Sync guide, the two were made for each other.
#3: Clean GPU Drivers With DDU (+2-5%)
Ninety percent of driver problems are driver leftovers. Upgrading your GPU driver over the old one leaves files behind, and those files misbehave. The proper fix is Display Driver Uninstaller (DDU), a free tool, then a clean driver install:
- Download DDU and the latest driver from Nvidia, AMD, or Intel
- Boot Windows into Safe Mode (Settings > System > Recovery > Advanced startup)
- Run DDU, choose "Clean and restart"
- Install the fresh driver, choose "Clean installation" if offered
This fixes microstutter, weird crashes, and sometimes straight-up FPS dips that no setting can touch. I do this every time I swap GPUs or when a driver update feels cursed. It's a 30-minute chore, but it's the single most reliable stability fix in this entire article.
#4: Power Plan: High Performance (+2-5%)
Windows 11 defaults to Balanced, and Balanced is a liar: it lets your CPU downclock in the middle of a firefight. Switch to High Performance or Ultimate Performance:
- Press Win+R, type `powercfg.cpl`, Enter
- Choose High Performance
- For Ultimate Performance: open an admin terminal and run `powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61`, then select it
The gain is 2-5% on desktop CPUs, mostly in games that are CPU-bound at high frame rates.
Laptop warning: do not do this on a laptop. High Performance forces the CPU to run hot constantly, which triggers thermal throttling, which costs you more than the power plan ever gave you. Laptops: leave Balanced on, clean your fans instead, that's your actual FPS lever.
#5: Resizable BAR (+2-9%)
Resizable BAR (called Smart Access Memory on AMD) lets your CPU read the GPU's full VRAM instead of poking at it in 256MB chunks. It's free performance in a bunch of games, worth 2-9% depending on the title, and it's sitting in your BIOS unconfigured.
The steps vary by motherboard, but the shape is the same:
- Restart, press Del/F2 to enter BIOS
- Find Resizable BAR (also called Above 4G Decoding, enable that first, then the BAR option)
- Enable, save, exit
The games that love it are open-world ones with huge texture loads. You can verify it's working in Nvidia Control Panel (the Resizable BAR line in System Information) or AMD Adrenalin. If your BIOS doesn't have it, your motherboard is likely too old, skip it.
#6: Game Mode ON and Hardware-Accelerated GPU Scheduling ON (+1-5%)
Here's a genuine 2026 plot twist: Game Mode used to be a wash, and the testing consensus has flipped. Microsoft kept improving it, and a 2026 30-game suite showed Game Mode ON delivering 2-5% on average. It's no longer the placebo people said it was. Turn it on:
- Settings > Gaming > Game Mode > On
Hardware-Accelerated GPU Scheduling (HAGS) is the companion toggle in Settings > System > Display > Graphics > Change default graphics settings. It lets the GPU manage its own VRAM instead of the CPU doing it. It's worth 1-3% on recent GPUs and usually neutral otherwise. Turn it on, and if you see weirdness within a week, turn it off, some older games still hate it.
#7: SystemResponsiveness=0 and Killing Background Bloat
The registry fix that's actually real: Windows reserves 20% of your CPU's responsiveness budget for background work, and SystemResponsiveness=0 reclaims it. The 2026 testing (OptiLag did the legwork) shows it helping low-end CPUs the most, roughly 2-5% in CPU-bound games, and near zero on high-end chips.
- Press Win+R, type `regedit`, Enter
- Navigate to `HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile`
- Double-click SystemResponsiveness, set value to 0
- While you're there, set NetworkThrottlingIndex to 0xFFFFFFFF in the same tree
- Restart
The bigger sibling of this fix is just uninstalling junk. Xbox Game Bar costs frames when it's recording in the background (turn it off in Settings > Gaming if you never open it), and Delivery Optimization (Settings > Windows Update > Advanced options) should be set to "Local network" or off, because Windows Update can eat your disk and network in the middle of a session.
The "Skip These" Section (Snake Oil)
Every FPS guide has a garbage section, and most of them pretend it's a feature list. Here's what I've tested and found worthless or situational:
- Auto HDR: turning it off only matters if you don't have an HDR display. With no HDR screen it's doing nothing anyway, and with one, the effect is visual, not performance. Not a fix.
- Disabling Game DVR entirely: modern Xbox Game Bar recording uses the GPU's encoder, so it costs almost nothing unless you're on a bottom-tier GPU. The old advice was from 2016.
- DNS changes "boosting" FPS: DNS does not touch frames. It touches how fast your name resolution works, which is once per connection, not per frame. Anyone who tells you otherwise is farming affiliate clicks.
- Defragmenting your SSD: SSDs don't fragment like HDDs. The defrag tool on an SSD is a "TRIM" shortcut that Windows already runs on a schedule.
The In-Game Settings That Actually Matter
The OS is only half the equation. Six graphics settings do 90% of the work in modern games, in this order:
| Setting | What it costs | Move |
|---|---|---|
| Resolution / upscaler | The biggest FPS lever in gaming | Lower it or enable DLSS/FSR/XeSS first |
| Shadow quality | Can eat 15-25% on its own in some engines | Medium instead of Ultra |
| Volumetric fog/clouds | Huge on open worlds, nearly invisible visually | Low or off |
| Anti-aliasing | MSAA is ancient tech and absurdly expensive | Use the upscaler's AA or TAA |
| Reflections | Screen-space vs ray-traced is a 2-4x cost gap | Medium, or SSR only |
| Texture quality | Almost free FPS-wise, costs VRAM instead | Keep it high, it barely touches frames |
| Draw distance | Big on CPU | Drop one notch, not more |
Set everything to Ultra, then drop these six one by one, and you'll find the exact frame rate you want with the least visual damage. That's the actual method of the "best settings" YouTube videos, minus the 12 minutes of ad reads.
The Ranked Checklist (Bookmark This)
FAQ
Is disabling VBS/Memory Integrity risky?
| Fix | Real gain | Time | Risk |
|---|---|---|---|
| Disable VBS/Memory Integrity | 5-10% | 5 min | Security trade-off, don't on work PCs |
| KB5074109 + all updates | 2-5% (frame pacing) | 10 min | None |
| Clean driver install with DDU | 2-5% | 30 min | None if you follow steps |
| High Performance power plan | 2-5% | 2 min | Laptops: skip, thermals |
| Resizable BAR | 2-9% | 10 min | None, BIOS only |
| Game Mode + HAGS | 1-5% | 5 min | None, toggle off if unstable |
| SystemResponsiveness=0 | 2-5% (low-end CPU) | 5 min | Registry, back it up first |
| Kill bloat (Game Bar, Delivery Opt.) | 1-3% | 10 min | None |
It's a security trade-off, not a disaster. Memory Integrity blocks a specific class of kernel attacks, and disabling it exposes you to threats that are rare on a well-patched, well-behaved gaming PC. If you're on a company laptop or handle anything sensitive, leave it on and take the frame hit. On a dedicated gaming machine, the 5-10% gain is generally judged worth it, but it's your call, and it's fine to disagree.
How much FPS will I actually gain?
5-15% total if you do everything on the list, with VBS and clean drivers being the bulk of it. If you're on a bloaty laptop, the ceiling is higher. If you're on a tuned desktop, you'll see the low end. Anyone promising more from settings alone is lying. The remaining 50% of performance headroom lives in upscaling, which is a separate guide.
Does RAM or an SSD matter for FPS?
Depends on your hardware. If you're running 8GB of RAM, adding another 8GB can be the biggest upgrade you'll ever make, and a slow SATA SSD causes open-world stutter that no setting fixes. But on a healthy 16GB + NVMe machine, neither will move your FPS counter. We have dedicated guides for both if you want the full breakdown.
I'm on a laptop, what do I do instead?
Skip the power plan change entirely, thermals will undo it. Do VBS off, clean drivers, and the bloat cleanup, those help laptops too. Then look at your thermals: cleaning the fans and replacing old thermal paste is the single biggest laptop FPS improvement there is, and it's usually overdue by year two.
Does Game Mode help or hurt in 2026?
The 2026 consensus is that Game Mode now helps, roughly 2-5% on average in a large game suite, after years of being a wash. Microsoft kept improving its scheduling priority. Turn it on. If you're on an old CPU with weird drivers, test both ways, the toggle costs ten seconds.
I did everything and my FPS barely moved. Now what?
Then your bottleneck is hardware or the game itself. Check whether you're CPU or GPU bound (both overlay tools show it), and look at the game's settings sliders in the table above. If the game is CPU-bound at 60 FPS, no Windows setting will fix it. At that point the honest next step is an upgrade, and the buying guides below are where to start.
Related Reading
- DLSS vs FSR vs XeSS in 2026: the actual biggest FPS lever in gaming
- Best NVIDIA Control Panel Settings (2026): the GPU-side companion to this guide
- 1080p vs 1440p vs 4K for Gaming in 2026: the resolution math behind your FPS target
- G-Sync, FreeSync, and VSync Explained: why frame pacing matters once your FPS is fixed
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