Hi, another Mac user here having the same issues with pretty bad lag in places that otherwise have been fine in the past. No specific place that I have the drop in, both games heavy in script usage, and those with minimal.
I personally upscale my display to the highest possible, despite this though, I have attempted playing roblox with the upscaling off, and am having the same frame-rate issue. I have my MacBook plugged in, at 100% battery.
It might not be my place to make suggestions on what the issue is, but I have a feeling that it has to do with:
A. The MacOS operating system
B. Integrated Graphics
In order to replicate the problem and get the microprofiler dump (1.6 MB) I performed the test in a game that I built, with no scripts, though team create was enabled.
I simply spun the camera 360 and lagged badly. Graphics set to 1 with no one else in the game.
I’ve had this lag issue for awhile now, though I couldn’t tell you the exact date I noticed the lag. Sorry.