BetterFPSLimiter allows you to set the max fps to whatever you'd like, so you can get have less stress on the CPU
Download
This mod requires Essential to work. It will be automatically installed when you start your game. If you want to learn more about what Essential is please go to https://essential.gg/
Direct Download
Click on a Minecraft version below in order to download the mod and place the file in your mods directory