Omega Super Charger Help

Anyone that has one please respond. Please tell me what happens when you press the start button to start your compressor, weather you have your tank hooked up or not.

1- does it start right away without hesitation 

2- buzzing noice like it struggles to start then does

I need to know if I have an issue. When I watch the videos online -they seem to start instantly without hesitation or struggling to start. Mine does not.
 
Mine is 2-3 months old. When I hit the start button there is a 1-2 second delay before the coolant pump starts, verify flow, motor starts without hesitation. Slow motor start may indicate insufficient or low amperage in the supply circuit. I'm on a dedicated 20 amp breaker, 15 amp multi use circuit may not be delivering enough juice. Tom
editt: buzzing noise. Definitely low amps. Continued use will damage start capacitor. Find higher amperage circuit; 120v washer, newer homes have 20 amp circuits for microwave and kitchen outlets.