Switch plain Bedrock. Same Problems as some already mentioned:
-Buildling and Breaking blocks visual lags
-Graphic buildup of the landscape lags
-Mob movement gets stuck or speed up
-Arrows don't hit tragets (flies through mob)
-Getting damage "from nowhere".
-Opening the trade menu results in extreme loading time out or crash
-Cart movement slow or just gets stuck
-Split screen 2 Player: Landing in lava for no reason when entering the Nether Portal, just to end up in front of the Portal as usual with lava damage taken (!!??)
Think the best option now, and I think I speak for most Bedrock players, is reversing the update. The "improvements" don't weight up to the problems in gameplay.
btw: cutting off the internet-connection improves performance a bit.