lower hostile mob spawn rates

The hostile mob spawn rate on bedrock is genuinely insane because what do you mean 5 zombies 2 creepers and 2 skeletons can all spawn within the same chunk on NORMALmode? On top of that the normal mob spawn and despawn rate also doesn't make any sense whatsoever, 3 sheep all shoot out from one another but  the moment i turn around and then look back they're all gone and suddenly a pig is there. and I guess mojang doesn't expect you to go hunting at night either because one the sun sets the only thing that you'll find is 7 zombies all together that can spot you from 100 blocks away. To add fuel to the fire, they also claim theres a 5 minute despawn timer as long as you're within like 5 chunks, yet I die and my loot despawns within 3 minutes. And to add onto this top tier game, I guess certain mobs also have like a 40% chance of hitting you through a wall whether its with an arrow or the mobs physical hands. W game