Minecraft is hanging/not loading. The World file size is getting bigger. Abrupt increase of RAM usage

After selecting my world then play it, it will load and hang. it won't generate the world.

There are times that my world will start but i cant move my character. Also, when i started playing my world it has a file size around 70-80 MB, but after playing it for around 5 mins the file size will increase around 300~600MB. Thereafter, when i play it again (the world with 600MB file size) it will just load forever and it won't start/generate the world.

 

edit: 10/11/21

As i observed, there are specific worlds that will abruptly increase the RAM usage of my PC from 4 GB to maximum then it will hang eventually.

 

thanks