StableCap Pacer is a client-side performance utility that improves capped FPS smoothness by using a high-precision frame pacer. It helps reduce frame-time jitter and micro-stutter when you play with an FPS limit.

This mod works with any FPS cap — 120 is just the default. You can set it to whatever you want (60 / 90 / 120 / 144 / 165 / 240, etc.).

How to use

Set Minecraft Video Settings → Max Framerate to Unlimited (or 260) so you don’t double-limit.
Launch once, then edit: config/stablecap-client.toml
- Change targetFps = 120 to your preferred cap.

Recommended for smoother pacing
For the most stable feel, set the target slightly below your monitor refresh rate:

120 Hz → 117–119
144 Hz → 141–143
165 Hz → 162–164
240 Hz → 237–239

Notes

Client-side only (no server install needed).
StableCap improves frame pacing, not maximum FPS. It won’t “force” extra FPS if the game is limited by CPU stalls, chunk updates, or heavy rendering — it just makes capped FPS feel steadier when the system can keep up.