How is the Covid shot so fast?

No.13172010 ViewReplyOriginalReport
Honest question, whenever I got the jab or watched someone else they'd do it in like half a second. Even accounting for experience, how is it physically possible for them to insert, allow it to pump, then out so fast? Some kind of proprietary needle tech for phobics? Every video shows it being like 7 seconds, and search doesn't help.