I need a very very fast wait(), but it has to be a tad bit slower than Heartbeat.
https://developer.roblox.com/en-us/api-reference/event/RunService/Heartbeat
I tried things like wait(.0001) but even that is too slow.
The minimal wait() time is about 1/30th of a second, or 0.029.
The only one faster that i know of is heartbeat, which can go around about 1/60th of a second.
So, you can do something like Runservice.Heartbeat:Wait()
or Runservice.RenderStepped:Wait()
There's not much else you can do.