Ableton Live 11 can be set to limit the framerate. Enter the line below in options.txt
(a similar option exists for Ableton Live 10: “-MaxFpsMac=30” , see the reddit link)
-MaxUiFrameRateHz=15
https://help.ableton.com/hc/en-us/articles/209772865-Options-txt-file
and
https://www.reddit.com/r/edmproduction/comments/oaib0j/tips_for_reducing_cpu_speeding_up_launch_of/