Screwdriver question Miniware ES15S

[asupsp700]

I bought myself a gift on Aliexpress - a cordless screwdriver Miniware ES15S.
The screwdriver has an impact function. It works adequately in positions 1-3. But it has a long delay in switching on the blow at position 4-5. I asked the support service and they said they would fix it in future firmware. Is there anyone here who owns such a tool? Check how your shot works at position 4-5?
I am attaching a link to the video of the work...
https://youtu.be/sVuZ-_JC2RA

[thm_w]

Why would you want that function at all?

I get it on a normal screwdriver, here it just bounces out of the screw and tears it up.