Depends how you drive, mainly the top speed. In most cases with evs will work without major problems.
You can calculate what thickness you would need when you know your top speeds and driving style. Meaning mill new brake pads thinner so you can fit thicker rotors if needed.
https://youtu.be/JwjnQqfFSGo?si=IOMTo44iGg27rHDp
My version from years back. Those can be made from sheetmetal parts quite easily. Cost was same as racing rotors from cast steel