Just change the M109 in M104 it's not needed to wait hotend temp before chamber soak.
And if chamber and hotend (temp > safe temp) is already hot it's just waiting hothend cooldown of hotend.
Before
# Heat the hotend to the safe temperature to spread some heat as well
M109 S{safe_extruder_temp}
Fix
# Heat the hotend to the safe temperature to spread some heat as well
M104 S{safe_extruder_temp}
Just change the M109 in M104 it's not needed to wait hotend temp before chamber soak. And if chamber and hotend (temp > safe temp) is already hot it's just waiting hothend cooldown of hotend.
Before
Fix