Maple movement lags like hell?

WTF man whenever I hold down an arrow key to move the whole game starts jamming up until I release it from my hold. For example when I press down the right arrow key to move the whole game starts to freeze and aft a few seconds it returns to normal aft I stop pressing on the arrow key. Any1 knows how to solve this prob? Thx in advance. I dun wan no sh!t answers or insults if u noe wat to do tell me if not kindly keep ure comments to ureself and F off.