Force India admit they can't afford to take their foot off the pedal if they are to reach their targets this season.
The Silverstone squad are sixth in the Constructors' Championship with nine points after both Paul di Resta and Nico Hulkenberg finished in the top 10 at the Malaysian Grand Prix.
The pack, especially the midfield, is likely to be a lot more compact this season and Hulkenberg admits it is hard to know where they stand after just two races.
"We're only at the start of the season - we've only had two race weekends, so we still need to wait and see," the German said.
"Because the midfield is so compact nobody can afford to relax. We all need to push hard to improve performance and with 18 races still to go there's plenty of time to do that."
Team principal Vijay Mallya echoed his comments, saying it will be hard to score points regularly this campaign due to the stiff competition.
"I said last year that the competition in the midfield was close, but this year it seems to be even more so with the majority of the grid capable of fighting for points," he said.
"It's a good situation for Formula One, but it also means points are harder to come by. It's encouraging that we have scored points in both races and that will be our aim once again in China."
He added: "In terms of car development, the factory at Silverstone continues to work at full capacity to improve our performance. The first two races have given us a great deal of information to work with and we will put it to good use in the coming races."