Although Sergio Perez feels he is stronger now than at the start of the season, the McLaren driver concedes there bigger steps need to be taken.
Perez joined McLaren from Sauber at the start of this season and it has been a difficult start to the partnership.
Fighting just to get inside the top ten, Perez has netted points in only half his races.
As such the Mexican driver has just 18 to his tally, putting him 12th in the Drivers' Championship.
"It has been difficult to get to know the car. From the first time I drove it in Jerez (at the first test) to now it has changed completely," he said.
"Every weekend we make steps on a Friday, trying a lot of things, so then on a Saturday we are starting with a completely new car.
"But my understanding of the team has grown a lot since the start of the season.
"Right now I'm in a good position to maximise the full potential of the car, exploring it and its limits more, trying to get the most out of every single detail.
"In that respect we have made a good step, we are getting very strong and with my group of engineers I'm getting very strong, but with a lot of room to improve."
The 23-year-old is now hoping for better in the second half of the Championship.
"I've only had 10 races with McLaren which have been difficult, so hopefully the next few races we have are much better," he concluded.