After the more aggressive aerodynamic developments needed for Monaco, the British Grand Prix required a more conventional set-up for the cars.
Silverstone is very similar to Barcelona, and as such very few developments were seen on the cars. Additionally, most teams have been focusing on testing low downforce/low drag set-ups for Canada and Indianapolis.
Silverstone is a classic F1 track. Although it is still regarded as a high speed circuit, the slower complexes at the end of the lap compromise the car's set-up, and large amounts of downforce are run there.
With the lower powered V8 cars, and even stickier tyres, the opening half of the lap is completed nearly flat out and with no real braking zones until the second sector.