Guild Wars 2

After the big lag problem from 12-11-2012 to 16-11-2012 today the lag come back.
In the weekend the game works fine but today after 17:00 (UTC +1) the game work like this:
http://www.youtube.com/watch?v=U6O6CuQw_ec
At the moment is really unplayable
My isp is: Infostrada
I also try with isp: Alice
With same results…
I Play normally since 17:00 of today.

That is no latency lag,this is fps lag nothing to do with your connection,but with your hardware.If you think im wrong,open the options menu and tell me your fps,im saying its 1 – 2fps.

Yes is like 5-6 fps but is not my hardware
My computer:
Intel Core i5 Cpu
Ram: 6,00 Gb
Video: Nvidia geforce gt 320
And Since 17:00 of today i play normally and i dont install nothing

I would still look if theres anything on your pc that might cause this,or do a driver reinstall perhaps,i highly doubt the gw2client is responsible for this.