I have seen during the past days that there´s an issue with full screen detection. At least I noticed screen was shortly resized during game loading when developer mode is active. Switching to windowed and back to fullscreen appears to solve it. It´s the first release where I see such bizarre behaviour but not the first one that reproduces any kind of issues related to full screen mode. Therefore stuttering could be reproduced if you are not using the regular full screen mode.
Cheers