You can certainly try feeding her two rats per feeding ( one after the other ) to see if that helps.
I find none of mine enjoy being misted so try my best to do it at the other end of the enclosure when it becomes needed. I'd try and find a way of changing the enclosure to make it less necessary than 3-4 times a day though.
If you put up pictures of your enclosure we may be able to suggest the best way forward.
she is doing this.
also - I see she knocked over one of her humidity gauges and I can see where she is trying to get out of her cage to snoop around...