Not so much that but a centrifugal supercharger is basically parasitic load till it comes to boost and starts pulling its weight. It actually takes more to run them than a turbo or twin turbo setup. I think this would add to the effect of turbo lag a lot. I'm kinda thinking about how volume would relate to boost pressure. Seems since the blower is engine driven, that woudn't really be an issues with the right pulley selection.