Blur Busters Forums

Hello,
I am experiencing weird behavior when I plug PCIE card and turn off my onboard LAN controller (Realtek 8125B) in bios.

So when I use onboard Realtek my mouse is very fast and responsive, game is just faster but also there is some type of desync and enemies are killing me in 0.001s and moving very fast that I can't track them.

Some time ago I ordered Intel I210-T1 to check If things get better. When I plug PCIE card and turn off my onboard LAN controller my mouse feels very heavy and game is slow but enemies are moving normal and im not getting peeked like ferrari.

Is there anything that I can try to fix the heavy mouse feeling?

CPU: 5800X3D
GPU: 3060TI
MOBO: X570 TOMAHAWK

daw1dek wrote: ↑

05 Dec 2025, 11:07

Hello,
I am experiencing weird behavior when I plug PCIE card and turn off my onboard LAN controller (Realtek 8125B) in bios.

So when I use onboard Realtek my mouse is very fast and responsive, game is just faster but also there is some type of desync and enemies are killing me in 0.001s and moving very fast that I can't track them.

Some time ago I ordered Intel I210-T1 to check If things get better. When I plug PCIE card and turn off my onboard LAN controller my mouse feels very heavy and game is slow but enemies are moving normal and im not getting peeked like ferrari.

Is there anything that I can try to fix the heavy mouse feeling?

That's weird. But it's not unprecedented.

Sometimes the onboard Ethernet is better, and sometimes the PCIe Ethernet is better.

There are thousands of reasons why this is the case (mostly external and unsolvable, some internal and improveable), so it's hard to troubleshoot this type of issue. It could be some algorithm kicking on in the game too.

Don't believe him, he says your problem is 99% unrelated to EMI. So what else could it be?