Hardware for AE

Hallo AE community

I have just started to use AE more in my business, but find it very slow on my iMac 5K 2017, RAID, 64 GB RAM, Radeon Pro 580 8GB

What would be more effective for AE only, a kick a** PC?

What is most important for AE, RMA, Processor, Graphics Card or a combination?

I have searched the net, but have not found any clear answers, that is why I ask here too.

Thanks in advance and Happy New Year.

Br

Ulf