Something bugged after the upgrade to the new Unreal Version and Multiplayer is now having major problems. Basically, once a battle starts the client will start lagging like crazy. This is not at all related to ping.
I'm still looking into how to fix this. I'm sorry that it's taking some time.
To speed up fixing this I might keep posting small updates to the game without making announcements about it. Hopefully I get this resolved soon and then I can make a post about all the things that got added in the meantime.