Weird connection issue while playing with my friend.

[Gowly]

I was wondering if any of you ever had a similar problem, and if you did, if you could help me figure out how to fix it.

 

For context

- We're playing about 1000 kilometers apart, and I'm hosting a world on my computer so we can play together.

- It's just the two of us.

- We're both playing from steam.

 

So what happens is that the game runs fairly smoothly on both ends, until sometimes her game freezes: animations still loop, but entities stop and time stops advancing on her computer. But here's the issue: if she inputs movement keys while frozen, she still moves on my game (and by extent on the server).

 

So what I'm guessing is happening is that her data packs have no trouble being uploaded to the server, but she's having these long lagspikes where her game won't download the server's data packs, and it's really hurting our session.

 

Would hosting a dedicated server change anything? If not, do you have any idea how we could fix this or what might be causing it?