Bedrock super glitchy and is lagging big time

Bedrock is EXTREMELY glitchy and lagging (especially in the nether)... World doesn't load when you fly sometimes it takes a couple of minutes. Blocks break a few seconds after you mine it and sometimes reappear seconds after you mine it. We glitch through blocks sometimes which on several occasions caused us to die. Makes going into the nether and into the end a little more difficult and stressful than it should be. I almost want to quit bedrock because of how annoying its been for all of us on the realm. But haven't switched to Java yet because not everyone on the realm plays on pc. Some play on ps4 or the switch. So thats the only reason we haven't switched to Java. But even still the lag and glitches have been super frustrating