Mouse control works weird way

[HOCHAN-LEE]

Hello Sir I love your Minecraft . Thank you for making this game. one thing i have problem with your game. the mouse controller doesn't move in the way that i intended to. so i tried in different computer it has same problem how can i solve it. please help me i really love your game.!

[HOCHAN-LEE]

[Python-Sargent]

Maybe you are using an unsupported keyboard/mouse system.