When I look at the system performance it seems the HD is the bottleneck. CPU is only at 15%, RAM 3.9G/8G, Ethernet below 5%, but the HD is 100% flat.
So maybe SDD will improve sync, I will try that.
But it raises a question for me, why is syncing so hard on the HD? Blockchain is about 250G, that's only a few minutes for a SATA6 drive