Service was fine on the last LGW long haul flight I took too, so it can't be down to crew numbers. Interestingly I remember operating a rammed shorthaul flight (those were the days) and expecting the crew to struggle to complete service in time. Imagine my surprise when they were all wrapped up with time to spare and still managed to call us every 20 mins regular as clockwork. Turns out 3 of the 4 crew were ex-Concorde and used to working fast whilst delivering premium service. Perhaps we need more of them in the cabin, and those who find it foo arduous should perhaps look for a more sedentary role in life?