How to Make Better Clouds Look Realistic Without Hurting FPS

Volumetric clouds are heavier than vanilla's flat layer, so the goal is to find the heaviest look your machine holds at a steady framerate. Tune in this order, since each step has a bigger cost than the last.

Start with the cheap wins

Lower cloud density before touching anything else; fewer, larger puffs read as realistic and cost less than a dense overcast. Reduce cloud thickness next, because tall columns are rendered from many angles. Keep the cloud deck reasonably high so you are not looking through the most detailed part of it constantly.

Then adjust distance and quality

If the mod exposes a cloud render distance or quality tier, drop it one step and compare. Shorter distances cut the number of cloud volumes drawn at once. If there is a fade or LOD option, enabling it hides the transition instead of drawing full detail far away.

Test in the right place

Benchmark while flying or standing on a high vantage point, since that is when the most clouds are on screen. Watch your framerate during normal play, not just standing still. If you use shaders, remember that shader cloud settings and Better Clouds stack; disable one of them if performance is still poor.

Keep a note of the values you settle on so you can restore them after a config reset.