Zwift on MAC high CPU

I’ve opened Zwift on my laptop, spec as follows;
MacBook Pro (15-inch, 2019)
Processor 2.6 GHz 6-Core Intel Core i7
Memory 32 GB 2400 MHz DDR4
Graphics Radeon Pro 555X 4 GB
Intel UHD Graphics 630 1536 MB
OS Big Sur

I haven’t even started a ride yet and Zwift is sitting at 55% CPU and all the fans are going full gas, has been for about 10 minutes, I must be doing something wrong, there is no way Zwift should be using that much CPU?

Grab yourself a snack and read this thread: