There is a cheap fix !
Take it for a long drive ! Don't ask me why but I'll make a bet with you that this works. . .I think your little fella is aching for a long drive. mine was anxious in the same way, ,trying to rev himself up . . .
As amusing as this might sound, I'm actually not joking.
As for junctions etc: I got around it with the gears and clutch /
Do the revs 'spookily' reduce when you gear down and your clutch reaches the friction point ? Try getting out of the junctions and get on the highway for a day. As for the juctions / coast your clutch at the friction point, when its trying to rev itself up. Let him know with the friction point that he aint goin no-where without your say so..