JPM's poor performance

[Valve Bounce]

While JPM's was not the fastest car in the first stint, he was not that much slower than the Ferrari or the McLarens, and had no problems keeping them at bay when they were behind.
However, something changed at the second pit stop, and his pace was nowhere in the last stint, with the handling so bad that JPM was making lurid slides correcting for the car's poor handling.
I wound back the tape to the second pit stop and checked it frame by frame using freeze frame, and lo and behold, as soon as the car came in, two mechanics leaned over the front end and either adjusted the front suspension or the front wings (couldn't see which). Whatever they did had an adverse effect on the handling, and that was the end of JPM's podium chances. Even Coulthard's poor handling McLaren easily kept the Williams at bay after that. In fact, while we did not get any lap times, I am sure the Williams was at least two seconds a lap slower in the last stint.
Perhaps somebody with other than ITV coverage might shed some additional light on what happened.

Valve