Mouse Issues When Moving or Casting Spells

[hairpinlegs]

EDIT: I've solved the issue completely. For those experiencing this error in Windows 8.1, mouse over to the top right corner of the screen, click on Settings, click on Change PC Settings, then click on PC and Devices, then click on Mouse and Touchpad. Under the Touchpad section, there should be an option to turn off the delay after typing to make clicks work. It seems that any keyboard presses seem to trigger this delay to happen.