It's doing it again ... Killing my Mac. It almost grinds it to a halt. The Cooler going non stop. affecting all other programs. Now quite so bad as with The snapshots rung up to 1.16.1 ... But bad!
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MMK21
galaxy_2alex
Please read the moderator note on MC-187345.
The late 2013 iMac is quite a low-end machine now, so if you are experiencing performance issues, lower the video settings.
migrated
This seems to be a lag problem. Lag problems are generally not considered a bug, unless there is a clear reason and solution.