Originally Posted by
racer_hh
Some of my colleagues told me I am to slow I shall race a bit faster this solves my issues :-)
but I hope you can recommend something better.
Thanks a lot
racer_hh

very good suggestion...
Well actually, what you just described is quite normal and as suggested by Lille-bror, try to put in a hotter plug (go from 7 to 6, or from 6 to 5)
When driving 1/4 throttle through the narrow pitlane, your engine will load-up...
Maybe you can also just set idle a bit higher...