Hey bro please help … i have the same issue and my laptop only aupports windows 10 ..and its so frustating , the same is happening with me too but only in the premiere pro preview screen not even in after effects.
Other thing , the nvidia settings (GTX 1060) is same for both softwares and i set 12.8GB ram for this application in settings.
Please help bro, i am getting the same pixlated lines when there is maximum motion on flickering came in videos every single time … i cant even edit due to this frustation . ☹ If u dont know plz tell me abut any perso who can help inn this issue 🙁