Variable refresh rate on M2 Mac

Hi everyone! Just got an M2 MacBook Air, ran the timeByFrames demo, and got the (ghastly) result below–it’s supposed to be running at 60Hz but the mean is much closer to what I’d expect with 120Hz and the distribution of screen durations is bimodal. Has anyone dealt with this and/or found a workaround? Best I can do now is go with the mean duration and pretend I’m running at 120Hz but this makes me nervous.

Thanks!

Dan Dillon