One thing to try is to turn off the GPU acceleration. Go to Preferences, click on Performance, then uncheck the box.
Doing that causes the program to freeze as well.
It won't let me uncheck the box. It just freezes
You will have to disable the GPU by editing the preferences file.
Close Lightroom. With Windows Explorer, navigate to
Open the file Lightroom 6 Preferences.agprefs in a text editor, like Notepad.
Close to the end of the file there is a line that says useAutoBahn = true, - change this to useAutoBahn = false,
Save and close the file. Now launch Lightroom.
Sweet. It works like a charm. Thank you so much!