Williams technical chief Paddy Lowe admits the team does understand the causes of their current lack of pace but solutions remain slow in coming.
The Grove-based team continued to sit at the back of the grid in Canada with Sergey Sirotkin the last finisher and Lance Stroll exiting his home race on Lap 1 following a scary crash with Brendon Hartley.
The mechanics did earn a small moment of joy by winning the raft race on Saturday evening in Montreal and Lowe has praised the continued commitment shown by the team.
"It's a difficult time for everyone, especially the racing team at the track because the same amount of work is done regardless of whether the car is fast or slow," he was quoted by F1i.com.
"It's important to work with a good morale, and that's hard when there are obvious problems with the car."
Revealing what those issues are, he continued: "The problems that we had in Canada are the same we have had since the beginning of the season.
"They are related to aerodynamics, and the solution takes time. We'll deal with them as soon as we can.
"We understand the causes but it's still not easy to eliminate the problems."
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- Stroll Sr. maintains faith in Williams despite current difficulties
There has been a mini-purge with Ed Wood and Dirk de Beer released from their duties in the aerodynamics department. Despite that, many are wondering just how Williams will overcome their problems.
Some were critical of the decision to take on two youngsters in Sirotkin and Stroll for 2018 and believe their lack of experience isn't helping but Lowe dismissed that claim.
"They're not lacking motivation or energy," he said. "In difficult situations, some drivers start to lose their temper and it can emotionally affect everyone.
"I've worked with an excellent driver in particular, who won many races and more than one title, who at the end of a race would say whatever he thinks.
"So different drivers behave differently in this or that situation. But this does not happen here -- I don't have to worry about it."
