random crescent
Why am I having FPS issues?
You can improve your FPS by changing certain visual and performance settings.
You can see a detailed guide on the optimizations which can be performed here. 
https://support.lunarclient.com/a/solutions/articles/60000764858?portalId=60000050880
this could help a bit
random crescent
that will happen when ur not on lunar also
kindred magnet
you could turn off player render in lobbies
kindred magnet
In most server lobbies there is something that can hide players
fathom yarrow
For FPS problems: #📩︱create-ticket / #📋︱community-support
For FPS optimisations: https://support.lunarclient.com/a/solutions/articles/60000764858?portalId=60000050880
For "some special +100 fps mod i heard on youtube shorts": Thats already been suggested