Garry's Mod Gamepad issue

Alright, hello, so i’ve had this problem with the gamepad for weeks now, so I used the gamepad for fun with my PS4 controller, but when i took off the gamepad the controller thing stayed on, i can use my normal controls but switching weapons and stuff is instant and very annoying, I have tried -autoconfig in steam launch options, I reinstalled it 2 times, I deleted my entire gmod folder, I disabled steam cloud and verified my game cache, nothing has worked. Please if you could help me it would be so grateful.

bump?

Options > Keyboard > Advanced > Fast Weapon Switch