Not sure if this is an actual fix or I just lucked out

[x814xMafia_PSN]

If you're still experiencing lag, connection issue, or slow screens in the game; log out DD, close the app, and select 'restart your console'. If it matter, I'm on a PS4.

After I did that, I was able to sign back in and was able to manuver through the screens, Buy/Sell cards, sim Conquest games, and play an actual game without any issues.

Again, not 100% positive it's a fix. But it worked for me.

NOW I'm going to bed.

[SPlDER2 YBANANA_XBL]

This has worked for me on Xbox as well for what its worth. Whenever the menus get laggy, I get kicked, etc if I log out and close the app and come back its fine.