On the other hand, I have an "armor case" for my RPi5 which has contacts for every major IC on the board, and it runs at most at 50 degrees C (if I saturate it to the point of choking).
Plus it's way smaller, and there's no performance or software problems. One of the hidden tricks is to get an A2 card like Kingston Canvas Go+, which completely removes SD card related lag from the system.