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frame-rate

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Diagnose and remove FPS caps so the editor and game run uncapped (or at a target FPS). Use when the user says the editor/game is "locked", "capped", or "stuck" at a frame rate (commonly 60 FPS), asks to "unlock"/"uncap"/"raise" FPS, or wants to set a max FPS. Covers t.MaxFPS, VSync, fixed/smoothed frame rate, and background CPU throttling (EngineSettingsService).

Content/Skills/frame-rate/SKILL.md

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Nov 10, 2026

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Repository last updated
Nov 10, 2026
License
MIT

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# Frame Rate / FPS Caps Skill

A "locked at 60 FPS" editor or game is almost never caused by a single setting — there
are **five independent caps** and any one of them holds the frame rate down. Check and
clear them all, in this order, before declaring it fixed.

## ⚠<U+FE0F> Diagnose first — don't guess

`t.MaxFPS = 0` already means *uncapped*, so if the editor is still stuck at 60 the cap is
coming from somewhere else (usually VSync to a 60 Hz monitor, or the smoothed frame-rate
range). Read every source below before changing anything.

> 🩺 **"Capped" vs "slow" are different problems.** If the frame rate is *low* rather than *pinned*
> at a round number, it's not a cap — it's a workload. Run `unreal.PerformanceService.frame_timing()`
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