Gets stuck at large files

Poorly handles large files. I bought that app to browse a ~35MB json file and it took a lot of time using almost 100% of my CPU to process it. The app was frozen the whole time. If the app wouldn’t be frozen and used less CPU resources, I’d be perfectly fine with the waiting time, however currently I must drop everything else and let this app finish its work. Implement large file handling properly and I’ll rate 5 stars.

Tuszy about Cocoa JSON Editor, v1.2.5