High CPU Usage

After upgrading Lemmy from 0.18.5 to 0.19.1, the lemmy_server process is taking up 200-350+% of my CPU. Although I haven't seen it max out my CPU yet, it's getting dangerously close at times.

Any thing I can do to fix this?

I'd be fine with downgrading temporarily if this will require a Lemmy fix, but I'm not seeing any documentation on how to do that. I'm assuming DB migrations were run between those two versions (which might make that complicated).