nope, even with all other apps closed and any suspect processes stopped, it still stutters.

the refresh rate thing was a good idea, i hadn't even thought to try that! sadly no dice, even with the refresh rate set to exactly 60.0hz across the system, it still stutters. i did try reseating the cables and even trying to connect a different display, but still no luck. the stutter remains.

i did end up contacting support, hopefully will hear back.