This issue would best be assisted with in Technical Support forum.
Edit your post and select the Technical Support forum beside the thread title to move this thread there.
Do the following and reply with the results after moving this thread to Technical Support forum:
Otherwise, post DxDiag as per this post Performance/Stuttering Troubleshooting - #4 by Ibaraius
Enclose the results with ~~~ like this:
~~~
DsDiag results
~~~