Lewis Hamilton says his Mercedes is not responding to set-up changes and he was frustrated to be over a second off the pace despite a clean lap.
He ended a “difficult session” in 13th place, one-and-a-half seconds off pace-setter Charles Leclerc.
“There’s just not a lot we can do,” said Hamilton. “This is the way it is so we just have to drive with it.
“That’s just the frustrating thing because you’re trying to push, you’re trying to catch, and even when you do a decent lap, it’s 1.2 seconds down so it’s difficult.”
The adjustments the team made to the W13 between today’s two one-hour sessions did not improve its balance, Hamilton added.
“Nothing that you change on the car makes a difference at the moment,” he said. “That’s the difficult thing.
“You get in very optimistic and then you make changes and then and it doesn’t seem to be wanting to improve. So we made some changes going into P2. P1 was better. P2 ended up being a bit harder for us….