set to 12 threads and set affinity to every other thread in task manager

[2018-01-09 17:02:42] yescryptr16 block 51718, diff 0.111
[2018-01-09 17:02:42] CPU #2: 890 H, 94.62 H/s
[2018-01-09 17:02:42] CPU #0: 1014 H, 94.60 H/s
[2018-01-09 17:02:42] CPU #3: 3870 H, 94.21 H/s
[2018-01-09 17:02:42] CPU #1: 3853 H, 93.76 H/s
[2018-01-09 17:03:45] CPU #3: 5653 H, 89.20 H/s
[2018-01-09 17:03:46] CPU #2: 5678 H, 89.00 H/s
[2018-01-09 17:03:46] CPU #0: 5677 H, 88.42 H/s
[2018-01-09 17:03:46] CPU #1: 5626 H, 87.33 H/s
[2018-01-09 17:03:58] CPU #2: 1112 H, 88.63 H/s
[2018-01-09 17:03:59] Accepted 5688/6105 (93.2%), 18.07 kH, 353.58 H/s
[2018-01-09 17:04:09] CPU #3: 2357 H, 98.27 H/s
[2018-01-09 17:04:10] Accepted 5689/6106 (93.2%), 14.77 kH, 362.65 H/s
[2018-01-09 17:04:22] CPU #2: 1395 H, 89.85 H/s
[2018-01-09 17:04:22] Accepted 5690/6107 (93.2%), 15.06 kH, 363.88 H/s

this is on my dual xeon 771 x5470 server, it has 8 cores but i get better results using half