Dear,
The Performance of (my) Nintendo Switch has been seriously affected by the 16.100 update (140MB world).
-Buildling and Breaking blocks visual lags
-Graphic buildup of the landscape lags
-Mob movement gets stuck or Speeds up
-Arrows don't hit tragets
-Opening the trade menu results in loading time out or crash
That's what I've found up until Now. If wanted, I can provide some screenshots.
Thank you for your report!
However, we're already tracking this issue in MCPE-105892.
If you have any additional information, please head over there and comment on the ticket so we can get this sorted out as soon as possible.
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