Good but needed to disable "OpenGL Acceleration"

I downloaded this app to crop and resize a few JPEGs. I was having issues with the apps performance (i.e., slow, locking up), but after deselecting "OpenGL Acceleration" in the app preferences and restarting the app, performance improved dramatically. Crop and resize functions have worked well for what Ive needed to do.

MacBook Air 11-inch, Late 2010
1.4 GHz
2 GB DDR3
OS X 10.8.3

Christopher P. about Image Tricks Lite