The bedrock wither LAG

The bedrock either destroys himdreds and hundreds of blocks as soon as it gets to the second phase, absolutely destroying your device, meaning you get stuck on a loading screen if you dare try open your inventory, and if you get past that, the game becomes unplayable entirely and you just see yourself die of withering all in one as the game loads, blocks stop loading, the game is completely destroyed, along with the hours and hours you spend preparing for a “difficult” challenge. I don’t mind if it’s hard, I just don’t want it to brick your device. PLEASE address this issue. It ruins the game. Just make the wither not drop blocks or something