Summary

Downloaded the latest build (29 january one) and C4d R21 starts to get really slow and unresponsive.
Even the splash welcome screen comes in way after it normally should.
I tried to render just a primitive without the plugin in use, and the IPR render hangs for minutes and the redshift statusbar for inizialising is gone too.

When I unistall the plugin eeverything is fine again, i have done this several times with the same result.  the previous build (7 january) does not have this problem. 

I am using latest redshift bulds and c4d and latest Nvidia drivers.