Improving MA2500D link rate

Hi,

I'd like to know if it's possible to improve the link rate:

I see most people can reach up to 3600. I can top about 2.2-2.3 Gbps with Ethernet.

I'm using it in Germany with a coax cable which was meant to bring DTT to the upper floor.

Since it's a short (about 5-10 mt) and dedicated (nothing else except the Moca adapter) point to point connection, is there something in the setup that can be fine tuned?

I have no idea about how the Moca settings can be tweaked.

I'm running 2.0.11 and left the settings as default:

Thanks!