choose application window runs SLOW

When choosing a default application, or just an application to open with, it runs INCREDIBLY SLOW. As in, 5 seconds to render every change (scroll, click, etc). Everything else runs marvelously.

System Version: OS X 10.10.1 (14B25)

Kernel Version: Darwin 14.0.0

Model Name: MacBook Pro

Model Identifier: MacBookPro10,1

Processor Name: Intel Core i7

Processor Speed: 2.7 GHz

Number of Processors: 1

Total Number of Cores: 4

L2 Cache (per Core): 256 KB

L3 Cache: 6 MB

Memory: 16 GB

Boot ROM Version: MBP101.00EE.B05

SMC Version (system): 2.3f35

Serial Number (system): C2QN502TFG1J

Hardware UUID: 844B3DBD-6D74-528A-B160-06F19232D10D