Hi my name is twilight

Got a srt6 that looses power after a few mins of driving, then will gain power back somewhere along the road to my destination Or not. I’ll mash on the gas off a red Light, pedal to the floor and nothing but lag. Sometimes I mash the gas and instead of the feeling of throttle opening up and gaining speed quickly, it’ll have a hesitant feel but make noises like it hauling tail. RPMs max out in this situation but for some reason when I slap the shifter as if it was in manual mode gears shift but still lag. At times I can hit the gas from zero...fly to 59 hit 60 and boom lag! Sometime straight to 100 no problems. No check engine light so sensors are eliminated. I’ve heard things like intercooler, intercooler pump- not seeing overheating. Took it to high performance shop today, mechanic said it can be the supercharger clutch no engaging! Something about warm gear within or some magnetic something????!!!!Anyone with similar symptoms??? I need help!! I got smoked by a 93” civic last night...