Cubase 10.5 - audio performance on Mac with Retina (HiDPI) screens

I’m experiencing some really unfortunate audio performance spikes when running Cubase on my Mac mini. If using a HiDPI resolution the “average” reading on the audio performance meter is near 25% higher than using that running that same resolution in a non-HiDPI mode. Additionally, it seems as though the performance in general is scaling with the resolution used by the frame buffer… For example even at non-HiDPI resolutions, 1680x1050 will run significantly more smoothly than 2560x1600…

Has anyone else experienced this? Are there any workarounds?