The Swiss outfit has twice been hit by expensive pitstop issues, with Bottas delayed in Bahrain and his team-mate Zhou Guanyu affected in Saudi Arabia.
In addition, the C44 is not putting enough energy into its tyres which has compromised one-lap performance in qualifying and also left Bottas struggling on the hard compound during the Jeddah race.
"I think it needs to be a wake-up call,” said Bottas when asked by Autosport about the team’s disappointing start to the season.
“Obviously, it's only race two out of 24 and we've got things coming in the pipeline. But we definitely need to improve, not just the pace, but also operationally, now we've had both drivers having big issue on pitstops in two races.
“I think we've got some bits coming for Australia. Now we have two weeks to try and solve the pitstop issue. It was the same issue with Zhou with a cross threading.
“So that's something we need to fix, because even if we make the car faster, if we have long pitstops then it's not ideal.”
Source: Autosport