Guys,

I have completed my first modified version of the wallet without the freezing issue. I am NOT the dev of this coin, but this code is based on the dev's latest updated code. My modifications move the masternode list updating code off to another thread so it doesn't hang the GUI while updating. There are still a few other occasional freezes in the GUI (I've noticed especially when syncing for a while) - I may take a stab at those later. In this case, I was specifically targeting the freezing up for 20+ seconds every 30 seconds or so that made the wallet very frustrating to use.

Compiled Windows 64-bit wallet: https://github.com/modzer0hax/CoinonatX/releases/download/2.0.3.3-modz1/CoinonatX-win64.zip
Compiled Windows 32-bit wallet: https://github.com/modzer0hax/CoinonatX/releases/download/2.0.3.3-modz1/CoinonatX-win32.zip
Source on github: https://github.com/modzer0hax/CoinonatX

Disclaimer: I can assure you I've added no malicious code, but if you're worried about that then don't use this or review the source and compile it yourself. Make sure you have backups, etc. etc. and treat this as pre-release code. I'm not responsible if it ruins your wallet, corrupts your files, steals your wife, and all that.

I hope this will be helpful to someone.