fix high cpu usage for mtp-tcr/mtp-classic (pool and solo)

fix high cpu usage for mtp-tcr (both pool and solo) and for mtp-classic.
cpu usage stays around 0-0.1% as it was before the changes in gpu driver of last year.

There is no need anymore for --cpu-affinity 2.
Windows version is compiled with cuda 10.2 and required recent drivers (latest best)