fps issues on windows 10 version

my fps has been pretty good on windows 10 edition so far, but at times it's not. sometimes i get these random spikes where it goes down to what feels like 50 or 55 fps, and also, sometimes i get random spikes where it goes down to at least 20-25 fps for like 10 seconds or so! it's really bad. i've tried turning down the chunk setting and stuff, but it doesn't help. and if the bedrock edition performance is so good, it shouldn't be happening. i should be able to keep a constant 60, but sometimes it feels like it goes below it 😞. how can i fix this? i hate not having smooth gameplay... i even posted about this on reddit and 2 other people are having the same issue