First Thank your for your precious time,
there is a lot of options... I give you some screenshots on attachement
OSX is the Mojave, the version of C4D is R20.026 and Corona is Version: B2 rc 1 (core 3 (DailyBuild Oct 1 2018)) (DEMO licence)
and no team render
I tried once with and without motion blur activated ( still messy), I tried also with UHD cache/ path tracer
hope it helps I really liked the stills I made on high def
please don't redirect me to PRO RENDER :D
again thx for you help