Why does windows 2008 r2 outgoing traffic lag?

Question

Apache HTTP Server

Hello! There is a VPS with Windows 2008 r2, dedicated IP.
Apache attacked him. I flooded the site and went to ip from outside the VPS. The page loaded for a very long time
. I checked the speed on speedtest inside the server - the ping is excellent, the download speed too, but the upload is very low (like 0.5 Mbps).
I thought that the trouble was in the Apache config, rolled up nginx. Problem still exists.
Wrote to hosting support. We checked the node, everything is fine on the node too.
I sin on the Windows settings (there are no extra firewalls, the security settings also did not change the default ones).
Tell me please, what could be the problem?

Answer 1

so if the check for upload is low, you checked with systems like speedtest, try the Iperf test, and then we will look at the axis

Answer 2

Parallax.
Link to the library .
Link to git .