Haslam could do nothing but watch as his rival Jonathan Rea won both races and extended his lead atop the championship standings to 50 points.
"We'll have to analyse the data to figure out where we can improve in this area," he said during a press conference. "I'm a bit cross because I felt like I could have battled at least for the podium, but instead I lost it on the last turn."
Haslam attributed his below par performance to severe front tyre wear. Despite changing from Pirelli's 'B' to 'C' compound between the first and second race, Haslam still had the same problem.
"The two races were quite similar," he said. "I had good pace and was able to keep up with the leaders, but in the final laps I lost that feeling with the front tyre that was wearing quite a bit on the right side.
"Even using the harder solution the situation didn't change, maybe also because I had to push quite hard."