[SOLVED] SSH is slow as hell

I couldnt find the chipset in the dmesg ouput, but according to lsusb I have a ‘Ralink Technology, Corp. RT5370 Wireless Adapter’.

Indeed, but as I said about 2 weeks ago I had much faster rates (up to 800kpbs) with the exact same setup. I’m sharing the internet connection with my neighboor (legally, I asked), so I dont have any administrative options to change the channel (currently channel 6) or other settings. But there are not many wifi networks around (the nearest would be on channel 4 and 11) and none of it is new (you can see it in the screenshot I’ve posted here)
This surprisingly change in download rate is making me think, that it might be related to the Pi and/or OSMC (as said before, my PC has no problems at all and the download rate didnt dropped).