Yeah as a front man he would sometimes ramp up the goofiness to the point where it was overdone. That was my impression when I saw him live some 15 years ago with backing musicians that weren't up to the standard you'd expect from collaborators of Holger Czukay, to put it politely.
I kinda do like his two biggest solo hits, Cool in the Pool and Persian Love from Movies (1979).
But overall seems like he's more interesting when he's not the face of the project but the multi-instrumentalist and sonic genius, as here: