Centiplatrap/pc-game-fps-doctor - 观星指南 Stargazers.cn

Download · How to use · What it fixes · How it works · FAQ

Check my PC finds 4 things slowing the PC down. Fix all sets the monitor to 165 Hz and waits while the screen cable and a network cable are plugged in. Measured again, the same PC goes from 118 to 231 FPS

Fix VAN 1067, FPS drops and lag in VALORANT. Free, in about a minute.

Your game won't start, stutters or lags? Pitstop finds out why in about a minute and fixes what it can, with one-click undo. It never touches the game, Vanguard or Windows security.

Download

System	File
Windows 10 and 11	`Pitstop-1.2.2-portable-x64.exe`	One file. No installer, no admin rights

[!NOTE] The build isn't code-signed yet, so SmartScreen may warn you the first time. Choose More info, then Run anyway.

How to use

Open Pitstop and press Check my PC.
Press Fix all. Pitstop shows you how to do the rest.
Press Measure again and share your before and after.

What it fixes

Won't start

VAN 9003: VALORANT won't start because Secure Boot is off. Three steps, the ASUS BIOS path and a Restart into BIOS button

Type the error code and get three plain steps, down to where the switch sits in your BIOS. Restart into BIOS takes you straight there, no key-mashing at boot.

Low FPS

4 things are slowing you down: the screen cable is in the motherboard, the monitor runs at 60 Hz, Wi-Fi lag spikes and one memory stick. A picture shows where to move the cable

Pitstop names what's slowing you down, worst first: a monitor stuck at 60 Hz, a cable in the wrong port, one memory stick. Fix all does what software can and shows you the rest with a picture.

Lag

The lag starts at your Wi-Fi: 14 lag spikes a minute between the PC and the Wi-Fi, no problems from the Wi-Fi to the internet

One sentence tells you where the lag starts: your Wi-Fi, your router or your internet. Then it tells you what helps.

Proof

A shareable card: 118 to 231 FPS, lag spikes 14 to 1 a minute

Pitstop measures the same minute of play again and makes a card you can share. The numbers are yours; it never promises a gain.

Also

Undo. Every change is logged and can be undone, and Windows makes a restore point first.
Safe. No driver of its own. It never turns off Defender, Windows Update, Memory integrity or Spectre mitigations, unlike "debloat" scripts.
Free. No account, no ads, no telemetry.

How it works

Error codes. rules/errors.toml holds every Vanguard and VALORANT code, checked against Riot's support pages, and the ASUS BIOS paths. Pitstop checks what Vanguard needs on the PC (TPM 2.0, Secure Boot, Memory integrity, IOMMU, Windows build) and the drivers it blocks, listed in rules/drivers.toml. Restart into BIOS runs shutdown /r /fw /t 0.
FPS. A 60-second run with PresentMon, Intel's open-source tool, which reads Windows event tracing and never injects into the game. "FPS in fights" is the 1% low.
Lag. Latency, jitter and loss at each hop, a bufferbloat grade from A to F, and the apps using the connection. Server cities use public stand-in hosts from rules/regions.toml.
Code. crates/pitstop-core does the error-code lookup, frametime stats, checks and the undo journal, with tests. You need Rust 1.85 or newer and the Tauri prerequisites.

git clone https://github.com/Centiplatrap/pc-game-fps-doctor.git
cd pitstop
cargo test --workspace
cargo tauri build

FAQ

Can Pitstop get me banned?

No. Pitstop never touches the game, its files, Vanguard or its driver. It changes Windows settings you could change yourself, and logs each one so it can be undone.

How many FPS will I gain?

Nobody can promise a number. Pitstop finds what's holding your PC back and measures before and after. If nothing is wrong, it says so.

I got VAN 152. Can Pitstop fix it?

No. VAN 152 is a hardware ban, typically about 4 months, and no tool can lift it. "HWID spoofers" get the PC banned again. If you have questions, submit a ticket to Riot support.

Will it turn off security features to make the game run faster?

Never. On Windows 11, Vanguard needs TPM 2.0 and Secure Boot, and may ask for Memory integrity and IOMMU. Pitstop helps you turn them on. Riot says enabling IOMMU has a negligible performance impact.

Is the ping the same as in the game?

Close. Riot doesn't publish its server addresses, so Pitstop measures a public host in each server city. The number in the game can differ by a few ms.

Is Pitstop a free alternative to Hone or Razer Cortex?

For VALORANT, yes, and it works differently. Boosters apply a long list of tweaks. Pitstop measures first, fixes only what it found and undoes any of it in one click. It never switches off Windows security that Vanguard may need.

License

Pitstop is MIT licensed. The UI prefers the system font where it has one (SF Pro on Apple devices) and bundles Inter and Geist Mono, both under the SIL Open Font License 1.1.

VALORANT, Riot Games and Riot Vanguard are trademarks of Riot Games, Inc. Pitstop isn't affiliated with or endorsed by Riot Games. Hone and Razer Cortex are named for comparison only.