How to solve the slow start of Toyota Carroll 1.6 automatic transmission?

When I first picked up the car, I was tortured to death by the problem of slow start. Step on the accelerator for 2000 miles at a time, and then loosen the oil, just up to second gear. During this time, I thought about using the manual function and found that this problem can be solved well.

When starting, shift to D gear. Auto start, manual upshift, to the second gear. During this period, the throttle is not loose. Just keep 1500 rpm. If it's loud, you can lower it a little, so you can start much faster. Then the speed will be up to the third gear at 20 o'clock, up to the fourth gear at 30 o'clock, up to the fifth gear at 40+ and up to the sixth gear at 50+. I am comfortable running. When the speed exceeds 60, change back to D gear, which is fast to start and saves fuel. As for those who can take the lead in more than 3000 classes and 4000 classes, I still don't understand. I can hardly do 3000 revolutions, but I never fall behind others and lead others.