This texture was made for those who don't have a good cell phone, even more after these big updates that have been weighing the game even more, but your problems are solved with this texture (at least a little), I basically recolored the minecraft blocks and the I left it as simpler, and to help get more fps I removed the particles from the game, you can see some images of how the environment was after the texture is applied:

Please don't steal it, it seems simple to do this but it's a lot of work having to redo the textures, so if you're recording or publicizing leave the credits to me, you can change the textures only for your personal use.