Strange FPS Lag in Freelancer

[Leadcrows]

I have a small problem i cannot solve since some time now, maybe someone got an idea.

Playing Freelancer online, each time someone log in on the server and i see the message in red that someone logged in, my game fps-lag for like 1ms in ''that'' moment, it is not really noticeable, but sometimes when tons of people depart and log in it is annoying at all.
My game works perfectly fine in SP because there is no internet activity and online my ping is 10-20ms.
I think it is somehow related to my network adapter or Freelancer deep options.

Solutions i tried so far:
Trying all possible Drivers.
Disabling all non system necessary programs.
Network Connections related properties are no help.

I am thankful for any hint.

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The Explorador The Terrorist The Zoner
Omega Pirates Guild ~ Leadcrows

Do not waste my time by refilling your nanos or inciting an army