Stroll admits he must up his game in qualifying

Stroll has had some strong races this year, including a podium in the Azerbaijan Grand Prix, and finished just three points behind teammate Felipe Massa in the drivers' standings.

But the 2016 European F3 champion has found it harder to get the best out of the car in qualifying, trailing Massa 2-17 in the head-to-head.

Williams chief technical officer Paddy Lowe has said he thinks Stroll's struggles in qualifying are disguising the progress he is making as a driver.

"Qualifying is not my strongest point," Stroll told Motorsport.com.

"I have had some tricky qualifying sessions but also some unlucky qualifying sessions like Suzuka, I had a red flag and got blocked so I don't count that.

"It hasn't been as strong as my race pace that's for sure because I'm still not where I want to be with the car and myself over one lap.

"I just feel like I'm still trying to understand the tyre, the car, and just get myself in the zone. But last time I checked, there is no reward for qualifying. Points are in the race.

"It's a big part of the weekend for sure, it helps you score points but I've scored points."

Lowe has suggested Stroll's biggest difficulty is making the step up in pace needed immediately in qualifying for the first runs in each session.

Getting on top of the tyres is something Stroll feels will help him make gains in that area.

"In the race, I feel like I'm very good at that and then when I'm pushing for one lap and I'm trying to get the most out of myself and the car, I then find it's a big limitation and it's easy to go overboard and lose a load of lap time," he said.

"But I enjoy the challenge of the tyres, I think it makes good races, it allows strategy to unfold and all that."

Regarding race pace, Stroll said he is pleased with the way he has been able to get performance out of the car.

"In the race, I really feel like I'm on top of everything, I'm really good at tyre management and I'm just really happy with the balance of the car in the race," he said.

"I feel like I can just control the race really well."