Thats it! I unplugged my controller before loading the game up and now it works perfectly! ^^
Those zombies are hard as nails haha, really love the graphics, and thanks for the reply! great game :)
Sure I don't mind sharing, hope it helps: Windows 10 (64) - Intel Core i5 - GeForce GTX 1650
(I deleted because I double posted the same reply haha)