Romain Grosjean insists Haas was close to scoring points at the Canadian Grand Prix, despite a low-key showing by the nascent squad.
Grosjean sustained front wing damage on the opening lap but continued onwards, before he was ultimately forced to make an addition stop for repairs, which demoted him to 14th place.
Team-mate Esteban Gutierrez, who was unwell throughout the weekend, classified in 13th position.
"We’re not far from the points," said Grosjean.
"I was up to P11 or so, trying to fight hard and doing everything I could, and then the front wing went.
"That third pit stop definitely cost us everything we had been working for. We need to look more deeply into that issue to get it sorted.
"There are plenty of other areas where we can improve but, generally, the more we do, the more we understand the car and the better things get."
Gutierrez added that he struggled to work the tyres in unusually cool conditions.
"I was struggling a lot to get the tyres to work and then at the end of every stint it was difficult to keep the temperature in them, and once you start losing that the car starts to slide and it’s like driving on ice," he explained.
"This weekend we knew it was going to be very tough with the cool weather, but now we need to analyse how we can compensate and try to put more emphasis into the tyres to make them work to give us an easier race."