Lightroom 5.2 BLURRY When Zooming and Moving

Question

EDIT: Updating to 5.5 seemed to have fixed this. FINALLY!
Now when panning around while zoomed in, it no longer pixelates.
This was not in any previous versions or 5.2 RC. Happens in the develop module.
1. Everytime I zoom in or out, the image goes BLURRY for a second.
2. Then when zoomed in and I click and drag, it say's sharp except on the edges that where not in view which get's pixelated, but when I let go of the mouse button, the entire picture goes blurry for 1-5 seconds. Even if I click and drag only 1 pixel over it blurs the entire photo.
3. It also sometimes does it when  tapping \ to show before and after it goes all blurry and lags before it shows the before.
4. It does it when  clicking back and forth from one image to another in the photo strip.
Before it use to be zooming in would look mildly pixelated for a moment, then when clicking and draginng only the edges out of view would look mildly pixeled for a moment. This is driving my nuts I've reinstalled lightroom, deleted the preferencees folder, optimised catalog. Not fixed. It's also slower than it use to be.
Example. Sometimes the blur is even worse. Click to enlarge

Answer 1

I solved my own issue.  I saw an article @ http://www.lightroomforums.net/showthread.php?19694-Spot-removal-tool-doesn-t-work-with-Wa com-Intuos-5-in-LR-5 that solved my issue.
Step 1:
Walcom Tablet Properties
Step 2:
Click on Customize and change the default line graph from this:
Step 3:
To this
Step 4:
Click OK.
After that, my spot edit tool stopped freezing in LR 5.2 while i was using my intuos 5 pen.
Prior to doing this, I also did the procedure listed here:  http://forum.wacom.eu/viewtopic.php?f=10&t=8036
So it's possible that both need to be done in order for the freezing to stop.  I hope this can help others.