Question [Q] SetCPU Profiles not compatible on GTab 3?

On my Galaxy Tab 3 (8 Inch) Whenever I set a profile (Screen off, go into conservative kernel for example), my Tab literally freezes. When I turn the screen back on and swipe the animation moves slightly then freezes and my Tab gets completely stuck(Have to force restart). Are screen off profiles or profiles in general not compatible with the GTab 3?