Good day, friends! After escalating this report to the team, I have a few notes to share:
It seems that this is the intended design, as it is part of a fix that prevents the game from pushing the graphics card on some users’ systems too hard. The short answer:
By capping the number of frames to the display’s refresh rate, we no longer waste GPU cycles which could be used by other applications, processing power, and (on the whole) decrease the battery power (and/or energy) that is consumed by playing the game.
Utilizing V-sync should continue to improve the frame rate for users running below 60 FPS, but un-checking the option now caps the refresh rate to what your monitor can handle.
I hope that answers the questions, and encourage any other issues to be split off so we can look at them individually!
Thanks, again, for the report! =)