Friend having issues with connecting to games I host

Myself and two friends are trying to play games together.

We had two choices, Borderlands 2 and Dying Light, both on PC.

My one friend, my brother, is in the same house as me. The other lives a little away.

When trying Borderlands 2, we can all connect fine, but the friend who lives away is teleporting all over the map, and her inputs aren't showing up accurately from my perspective.

The same issue when we tried Dying Light. When she did something on her session, I wouldn't see it happen until seconds later or I just see her teleport around.

Wondering if her internet itself was the issue, I asked her to do a speedtest.

We both have the same provider so I figured they would be similar. And they were.

Multiple tests show she had 70-90Mbps download, 5-7Mbps upload.

She disabled firewall, antivirus, restarted the games, Steam, logged off anything that might be using data, and the results were the same for both games.

My brother has zero issues, since we are in the same house.

Overwatch however works just fine, with both of us getting no connection issues.

The results are similar when she is the host of the game. If I connect to her in Borderlands 2, I will be the one teleporting around and having input issues.

I've also tried pinging each other computers with command prompt, and average ping is 25ms, with a max of 32ms, it really does just seem to be games that she cannot connect to me well with

It seems also that my friend can connect to my brother's PC (which is on the same network as mine) and have no issues. However when I join the session, then she gets issues again.