Vampire Survivors lag usually has one of two causes. On many PCs it's the game running on the wrong GPU or without hardware acceleration, which is a settings fix. In late runs it's sheer entity count: thousands of enemies and projectiles from limit-break builds, which no setting fixes. We measured seven creators' late-run clips: normal runs were nearly stutter-free; extreme gold-farm and limit-break builds froze on up to 99% of recorded frames.
Why this game in particular
Vampire Survivors was originally built on a web-technology engine (Phaser, running in a browser-like runtime), later ported to a native engine. Both versions move every enemy and every projectile on the CPU each frame, and the whole point of the game is that there are thousands of them by minute 20. Builds that stack projectile count (multiple evolved weapons, high Amount, Duplicator) multiply the work.
Fix 1: make sure it's using the right GPU
The most-cited fix for stuttering in otherwise normal runs: on laptops and PCs with both integrated and dedicated graphics, the game sometimes runs on the integrated GPU. In Windows, go to Settings → System → Display → Graphics, add the game's executable, and set it to High performance. In the NVIDIA Control Panel the same thing is under Manage 3D settings → Program Settings. Several guides report this alone resolves "GPU lag" in Vampire Survivors.
Fix 2: in-game settings
- Options → Visuals. Lower or disable damage numbers, flashing VFX and screen shake. Damage numbers in particular are many extra objects per frame in a high-damage build.
- Limit the frame rate to your monitor's refresh rate if the game offers it; running uncapped wastes CPU on frames you can't see.
- Close browser windows and overlays, which compete for the same CPU on a CPU-bound game.
Fix 3: the build
When a late run crawls, it's the build. Chain-reaction and area weapons with high Amount, plus items that multiply projectiles, are the usual culprits. A player on the Steam forums demonstrated reaching under 1 fps within two minutes with a deliberately absurd setup; that's an extreme, but the direction is the same for any projectile-heavy limit-break run. If you want a long endless run to stay playable and recordable, choose weapons that kill with fewer, bigger hits.
What we measured
We pulled 30-second late-run windows from seven Vampire Survivors creators' videos and counted how many recorded frames were exact repeats of the previous frame (the signature of the game stalling while the recorder keeps writing).
| Footage | Frozen frames |
|---|---|
| Normal late run, gold farming | 5% |
| Limit-break run, streamer layout with webcam | 12–25% |
| "Less than 1 fps" demonstration build | 39–99% |
The takeaway: typical late runs are recorded smoothly, and the players who do lag are the ones pushing deliberately extreme builds. That's different from BTD6 or They Are Billions, where ordinary late-game play lags for everyone.
If you've recorded a laggy run
Repeated frames can be removed after the fact. LagCut's BTD6 page will dedupe any gameplay recording, Vampire Survivors included; its pause-menu detection is BTD6-only, so level-up screens stay in unless you cut them by hand. We haven't shipped a dedicated Vampire Survivors version because, as the numbers above show, most late runs don't need it.