I can concur, I had same stutters/freezes/jitters for my Node Web Kit exports for Win 32.
Taking this advice and using NWK v0.8.6 and it seems to have fixed the problem (temporarily).
My PC is pretty powerful, Intel i7 4.4-Ghz, 16-GB RAM, Nvidia 760-OC 2-GB, running on SSD + HDD, Win 7 64-bit SP1..
So when I get stutters in a simple game it usually means somebody has broken the law of coding physics!!!