Good luck and come back and tell about the results.
It looks like the benefit from enabling large page support and "-t 8" is very modest relative to the increased CPU load (+20 points), and the hashrate varies a lot more now, swinging over a range of >100 points with an average of 405; before the swing was more like 20 points, with an average of 375. So about 8% more hash for 33% more CPU load (80% / 60% = 1.33).
Here is a representative block of hashrates from the last 45 minutes, and this is with the devfee enabled, too:
01/08/18-16:38:09 - New job received from pool.dero.live:3333
Speed: 401 h/s, TotalHashes: 845K, DevHashes: 20K Mining time: 00:38
01/08/18-16:39:48 - New job received from pool.dero.live:3333
Speed: 322 h/s, TotalHashes: 880K, DevHashes: 21K Mining time: 00:40
01/08/18-16:40:12 - New job received from pool.dero.live:3333
Speed: 409 h/s, TotalHashes: 889K, DevHashes: 21K Mining time: 00:40
01/08/18-16:40:23 - New job received from pool.dero.live:3333
Speed: 426 h/s, TotalHashes: 894K, DevHashes: 21K Mining time: 00:41
01/08/18-16:40:35 - New job received from pool.dero.live:3333
Speed: 424 h/s, TotalHashes: 898K, DevHashes: 21K Mining time: 00:41
01/08/18-16:40:48 - New job received from pool.dero.live:3333
Speed: 408 h/s, TotalHashes: 903K, DevHashes: 21K Mining time: 00:41
01/08/18-16:42:21 - New job received from pool.dero.live:3333
Speed: 436 h/s, TotalHashes: 939K, DevHashes: 22K Mining time: 00:42
01/08/18-16:43:18 - New job received from pool.dero.live:3333
Speed: 409 h/s, TotalHashes: 962K, DevHashes: 23K Mining time: 00:43