The maximum render distance on my Redmi K20 Pro is only 9 chunks, even though the phone is capable of running the game at much higher settings at high frame rates. I have personally tested the game at 20 chunks render distance by modifying options.txt and the game still runs as smoothly as it does at 9 chunks render distance.
Thank you for your report!
We're actually already tracking this issue under MCPE-24148 so I've requested this report be resolved and linked as a duplicate.
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