Actually GPT5 optimized code right throughout my game so that holy hand grenades exploding lifeforms went from 4-7 fps to 100+ fps (on an i3/GTX 1050 - the framerate is ok on a beefy computer). That partly involved optimizing EzySlice which is too technical for me (even to try and guess what it originally involved) - and it also kept the functionality changes that an Upwork guy made to EzySlice. It made it so that EzySlice wouldn't allocate lots of variables and would just reuse the arrays for everything, etc. Originally I asked it to optimize for IL2CPP but currently I'm using Mono.JIT again.