Thanks to the anon who recommended Flathill for grinding Sneak XP last thread, I was able to optimize it a little further by getting the crystal nigga armor and staying crouched near the composer in front of the courthouse, you can legit AFK farm sneak XP this way since he always stays in range of you and he can't see you while you're cloaked. Halfway tempted to just leave the game running overnight and just be done with it but given how badly optimized this game is I don't wanna fry my GPU.