Mac Right-Click Menu UI Lag
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I'm getting UI lag, mostly when navigating the right-click menu.
It's most prominent on my 5,1 Mac Pro & 4k display at a scaled resolution. Running at default reso or low dpi of the same scaled reso helps marginally.
The lag is also present on my new maxed out 15" MacBook Pro, however it's totally usable, just distracting. When running the 4k external display off the MBP, the lag isn't as bad as the MP, and a bit worse than the MBP with no external display.
Viewport navigation is silky smooth in all scenarios and turning off "high resolution graphics" or "limiting effects to optimize performance" does nothing for the right-click lag. I'm running "OpenGL Core Profile" driver and no other programs are open.
MP has a GTX 680, MBP has a Radeon 460. External display is a LG 27UD88 running at 3008 x 1692 for both machines.
I'm assuming the is graphics card related and there's nothing I can do but you would think the new maxed out MBP would have no lag whatsoever though..
MP, most prominent lag: