My system can run MC at 120-200 FPS with all settings maxed out, but to conserve power I attempted to limit FPS using Vsync (And after the following problems, I tried the slider as well).
When the frame rate is reduced chunks will start to load extremely slowly. At 60FPS I can walk all the way up to the edge before a new chunk loads, even though render distance is set to 16. But if I simply set the frame rate to unlimited the chunks will load instantly and act normally.
Furthermore even if the settings in MC are unlimited, but I am recording with FRAPS (limiting frame rate to 30FPS) the same problem occurs.
I would expect limited frame rate would be a performance advantage, but instead it makes the game nearly unplayable. I am forced to leave the frame rate unlimited to play, but I am unable to record game play without chunk loading becoming unbearably slow.
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I searched with "Limiting FPS causes chunks to load slowly" and got zero results.
Duplicate of MC-32719 - If you have not , please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.