How are you finding that impacts efficiency?Our Pure 52 is even slower at 10.9 and to be honest it's fine. You end up using all of the acceleration quite often, but it's not like it makes more noise and ruins refinement like a petrol car.
I've now had experience of the Born, ID3 and Q4 40 which are all the 200bhp motors so you don't need to use too much throttle to get moving.
Not that it matters as we won't be using our ID4 52kWh pure for many if any long journeys as that'll be the Tesla's job, but would be nice to know. I think from memory in the Q4 we got around 3.2 to 3.6mi/kWh typically on long motorway/A road journeys. We had it in the winter months and it had software 2.3 installed.