speeding up export

I have a very modest Windows PC thatt runs Capture One 20 adequately.  But now I'm doing focus stacking and the time to export 30-50 TIFFs is pretty punishing.   What are the top things I could do to speed this up?

What I have now:

Processor Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz, 2808 Mhz, 6 Core(s), 6 Logical Processor(s)

16 gb RAM

NVIDIA GeForce GT 1030