[Question] Will creating the worlds and deleting them cause the server to lag?

[UnnamedWei]

I am running a server and I create a new world everymonth for my player to mine and deleting it from dimension folder and config in the multiworld, but every time I refresh it through deleting the old one and creating the new one I feel the server is more lagged everymonth, is this real? Am I deleting it with the right way?