I quickly list the change I made here, so you can try it on your A1.
(Below are the A1 mini commands, could be the same for A1 but I am not 100% sure)
1, Resonance check, are the M970 and M974 commands
2, Fan speed is the M106 commands
3,
M104 nozzle heating no wait,
M109 nozzle heating wait till temperature reached.
M140 bed heating no wait,
M190 bed heating wait till temperature reached.
4, Find the codes that draw the nozzle flush bar, the last 2 lines should be pushing the nozzle to the bed (Z0) and quickly lift (to maybe Z5)
You should move the quick lift code (the line could be G0 Z5) to the very end of the whole g-code. So it lifts → jumps to actual printing is faster…The filament keeps leaking out once it is lifted, so the faster the process is, the better for the initial stringing.