If we assume 2 years and 11.000 km, that translates into 0.6 km/hour, which is way below the speed of most ocean currents, perhaps by a factor of 10.
Ice on the north pole will most likely exit via the Fram strait within a year, so an a priori guess of 2 years to take the above route would have been reasonable.
So I see nothing unusual about the speed of the capsule. But the chances of it being discovered at all after landing, let alone witihin no more than a few months, is most unlikely.