Really enjoying Warzone Idle but is there any way to speed up hospital upgrades? It's frustrating to finally save up enough for a big upgrade and then have to stop playing before I get to use it.

To speed up the updates themselves you can do one of two thing:
1. Get good at the ladders, top 25th gets you instant hospital updates
2. Buy idle premium, this speeds up hospital updates by 100x (so it only takes 72 seconds)

However, what most people do, is just timewarp over them.
Once you get the hang of market strategy most levels only need 1 round of hospital updates.
You can put a TW artifact in the 4th slot and just use that skipping hospital updates, and the map itself should have powers on it too you can use for a while.

Thanks! This is my first run through so it'll be a long time before I can use a time warp artifact but I've been using the time warps when I have them. I doubt I'll get THAT good at the ladders.