Aces render issue

Hi
When I try to export an aces red helium 6:1
8k footage to full debayer TIFF 16bit 2k .
Rendering only average 2 frames for second.
Same thing with same footage yrgb project
Rendering average 15 frames in 2k average 5 frames in
4k.

Xeon dual 2697v3
Quadro p400
Quadro p4000
Gtx 1080
32gb ram.

[Peter Chamberlain]

Its likely CPU bound decompressing the 8K.

I would also consider removing the P400 totally and use the P4000 for UI GPU.

Its likely CPU bound decompressing the 8K.

I would also consider removing the P400 totally and use the P4000 for UI GPU.

Have u tried any latest CPU ....if it's a CPU issue I will buy the latest dual Xeon...I think...the dual 2697v3 is the top of line up to today...the latest top end in the Xeon is 2679v4... The both are in big difference...just 5% faster than my processor...any way...recommend me which configure is better for 8k full debayer aces export for 2k TIFF 16 bit