Wallhack on PC is just ESP with wall penetration drawing enabled. You're not literally shooting through geometry — you're seeing where players are before they edit.
Borderless fullscreen matters. Some overlays glitch in exclusive fullscreen and you'll swear the cheat broke when it's a display mode issue.
Drop distance tags past 100m in stacked endgames. You only care about the fight in front of you, not the team rotating from 200m away.
If frames dip, disable loot ESP first, then skeleton, keep player boxes last. Boxes give the most info per pixel.