Well, the new computer is workign fine.  I can maintain fps in the 20s and 30s in a dog fight with multiple cons right over the trees.  In the past I would have been at 10fps if I was lucky till the buffs showed up.
Last night, was cruizing at 53fps with only a set of JU88s comming in.  I closed in on them d800 no prob.  Around d600 or less FPS goes from 53 to 3.  Now, I am used to fighting at 6 or 9 but 3 was a liitle too much 

 .
If I changed the view and looked away from the 88s, fps went back to 53.  Soon as I looked at them, down to 3.
Any ideas?  I droped back to 1K and fired from there no prob.