The team struggled for performance with its low downforce package over the Italian GP weekend, with Fernando Alonso qualifying 10th and finishing ninth, and Lance Stroll out of the points in 16th from 20th on the grid.
With Ferrari logging third and fourth the Maranello team moved ahead of Aston into third place in the constructors' championship.
The race provided the team with a painful reminder of its weakness at high-speed tracks, and Krack is adamant that it will have to be addressed for the Las Vegas event in November, where long straights dominate the layout.
"The term damage limitation I think we stressed it a bit too much already," Krack told Autosport of the Monza race.
"Yes, two points. But we lost a position to Ferrari. And the most important thing is that we take the lessons learned for Las Vegas, and also for next year.
"So I think it's really important. We had similar issues last year when we came here, and we need to do a step forward in these kinds of circuits."
Asked if the team had anything in the pipeline that might help, he said: "We have a list of things still coming from now to the end of the season.
"Vegas I think is the second to last race, and we hope that some of these updates are helping to do that."
Source: Autosport