instability

when updating my Minecraft (1.19.30) my game started to show some instabilities, especially in the realm, when entering my world some parts of the map don't rederize correctly, and they can even go a few seconds without loading. and the game after the update is experiencing a feeling of sluggishness or a drop in frequencies per second. my device is a xiaomi poco f3 with (snapdragon 870, and adreno 650 GPU) and 6 gigs of ram. Next to ANDROID 12.