The snowblower performance is embarrassing

My last big storm in southeastern Massachusetts was a blizzard. 3 feet of snow and when the skies cleared I was down to blacktop. I did remove the diverter, have blower on maximum speed and travel to slow. I’ve also sprayed the chute and housing with wd-40 silicone to lessen the chances of snow build up. I have a longer clip, but file size to large