Daniel Ricciardo has admitted he is struggling to get up to speed at Renault.
"The car is showing signs of speed, but personally I am still trying to find all of it," Ricciardo is quoted by Italy's Autosprint.
"I need to find more confidence in the car. I'm still not where I want to be with the braking. Let's say I'm trying to find some more speed in some areas," he added.