I understand what you say, or at least I think so...
Just out of curiosity I opened Task Manager on the graph tab, I suppose the graph tells more about trends than the once in a second changing digits. There was very little going on, so I started AH. Immediately core #0 jumped to the top, #1 showing more modest action. So, it might make sense that setting #0 in a supporting role while favouring the other cores might balance the load. Then again, I know absolutely nothing about coding so I don't know if it were even possible. Also, as Skuzzy said, picking cores might not work for all computers. Plus the multitude of supported Windows versions not to mention what their updates might change in the operating system behaviour... Too many variables, IMO.
Agreed, not every machine will pass code the same, even where they have identical hardware and OS.
Thing is on my other machine, I could not get what appeared to be help, by playing with core affinity. Here tho I am isolating AH from 90% of all else, setting priority to high and using a frame rate cap instead of v-sync. These 3 choices do seem to make a difference.
Since I am running a 60Hz monitor I feel this arrangement helps to kill display input lag and focuses my pc directly on AH. I would luv to try and tune pc to servers tck rate but I think HT does not want to give up intel, I did ask.
I do better in HO's and and slight turn shots. I can see the impacts now, whereas before it was iffy. My bullets may have been hitting but v= sync frame correction was cutting things off. The ability to see hits is important considering the enemy position is constantly being updated by server.
I have often said that offline mode is much more spontaneous than online. Offline, all is on your pc realtime, online tho always felt different, always waiting for the server update and v sync appears to make the game ethereal, like fighting a ghost. Now its diminished somewhat, not gone, but less ghosty.
If you listen to the game chatter, the biggest complaints, besides getting HO'ed, is peeps saying how can they be missing shots or getting killed with single hits. I believe some of this is like what I was suffering, I have lessened it enough that I wanted to share.