C++ is probably the ugliest designed mainstream language out there

Mac OS sucks but this is a Roblox problem not a Mac OS problem. Btw they recently blocked linux on Roblox so good luck playing that.

I doubt the diemension of a game has anything to do with it, rather it is probably due to 3D games being more resource intensive. Do you use a nvidia gpu?

Change the default port and 99% of the bots will be gone

No. Make a dummy account