Take into account the extrusion "delay"

[rraallvv]

I'm printing with recycled PET filament that has a cavity in it, so I'm over-extruding by a factor of 1.9 set in SuperSlicer. The nozzle has three cavities to ensure high heat transfer from the hotend to the filament. However, I've noticed that the melted filament starts coming out of the nozzle after a noticeable delay once the extruder motor starts moving, sometimes taking more than a second. This delay remains fairly constant throughout the printing process. The effect is most noticeable when printing the support structure, with the supports looking like a bunch of spaghetti instead of a grid. Is it possible to account for this delay with a firmware setting?