Minecraft bedrock vibrant visuals mobile lag

Why is vibrant visuals available on mobile my mobile device doesn't lag alot but it drops my fps to 30 and starts to stutter and people with much lower devices have probably very bad lag when turned on. Mojang should make it less laggier or default settings to fancy or depending on device being used Based on specs of device. not saying disable it but at least make it not on by default so when people start playing the experience something that is beautiful but not playing with 30 fps or below.