How to measure Server Load?

My game is inspired by fall guys, thus why the game has a lot of physics going on in the background, like falling balls, rotating things, even the character is physics based. I am very confused if the game is laggy or not, if its client-side or server-side, on my gaming laptop the game is very laggy, but on my iPhone is runs smoothly its just that my ping is so bad as of the moment. Whenever I go to ServerStats everything is normal I add a feature it doesn’t increase or decrease I thought maybe I am doing this wrong… Is there a proper way to measure server load? Like how you can see client side performance on MicroProfiler is there a more indept measurement to get this?

Also are there any measuring stuff inside Roblox Studio?