iOS App Freezes When Changing Apps

I'm experiencing reoccurring issues where the PTCG Live app freezes and forces me to hard restart the game if I open another app on my phone. I mostly see this in deck building menus, the shop, or other parts of the game besides actual PvP gameplay. I'm nervous to try during a game and have the game freeze honestly. For reference, I would switch apps briefly and reopen Live after around 5 seconds or so. I recall encountering the issue after 30-60 seconds of being in another app too.

I hope this can be fixed as I think it's reasonable to expect the game to stay up after opening another app, especially given how long it takes the server to reload when restarting.