QTplasmaC upgrade now huge latency

I didn’t think the J1900 had hyper threading. I didn’t see it but I will look agian.

This is my trusty old Gigabyte Brix, 4 gb ram, Linuxcnc 2.94 from the downloads page, all my customisations including the R8168-dkms network driver. Internal wifi card removed and another goodie, an Asus Nano USB Wifi dongle. 8 x GLX gears and some light internet browing including posting this reply.This had latency of  around 130 back when I first used it on Linux MInt 17.3 and now it is mind blowing! 
 

That's the kind of latency I remember from my trusty J1900. Now replaced, but performed very well.

How? What did I do wrong ?

made a tweak

Great work!
What was the tweak? Tommy will want to know!