Why does a sniffer speed up file uploads on Google.Drive?

Question

C++ / C#

I am developing a client for Google.Drive. I use google api for .NET.
The download speed is extremely low - 600 kb / s with a channel of 6 MB / s.

I found that when I run the Fiddler2 sniffer, the speed increases tenfold, resting on the Internet channel limit.
The authors of the sniffer themselves give an explanation - they use a pool of keep-alive http connections, reducing the overhead of creating new connections.

Why does Google's api behave so clumsily? A search on this topic turns up nothing. Perhaps the problem is rare or even on my side, although on 2 PCs the result is the same.

Answer 1

probably need to ask the Google API developers