Clear the Bridge cache, check the hardware acceleration option in the prefs, updatew your graphics driver.
You folder is "building criteria". THat means it is compiling all the metadata on the images. You also have the message on the bottom "disk space is low". This could mean your cache disk is full or if you do not have a seperate cache disk your general disk is getting full. You should have 10-20% free disk space for system to operate correctly. For the math challenged if you have a 700 gig drive that would mean 70 to 140 gig of free space.
Dumping the cache will help, but it will have to be rebuilt.