Extreme CPU Utilization - Airmail vs Catalina

I have noted very high CPU utilization since installing Catalina - assuming this is due to use of voice control.

But though Voice Control is up high on CPU % utilization, the most notable stats on my computer appear to be the energy usage by application - see below.

Is this normal for Airmail?

Airmail has a reputation for being a bit … rough around the edges. Not shocked to see that.