How do you move one server to another server?

Is there a way you can move a server to another server? This includes all the progress, the loot you have, etc., because we started in a free server as a joke but now it is pretty big and it's lagging so we want to move that server to a high-quality server.

Solution 1:

This is easy. You just need to transfer the folder from the first server to another server. If you will switch ips by connecting to another internet then problems might occur like: the first ip not working, The second ip not being setten up. The port might wrong and all. But I am sure it's possible.

Note: I am not an expert in minecraft servers but i had a mc servers for my friend to connect to a private server.