Yes, on the first day of this test match, it is possible to play the match up to 1 ball only 44 overs. Otherwise if we had seen an uninterrupted session of six hours I think we would have seen over 400 runs today.
The way the Australian England team is batting
Sri Lanka is playing against England, not Australia. You have made a typo here. Anyway, 400 runs were possible if the day 1 wasn't interrupted by rain. England is going to make the Bazball method as their tradition in the test format. The match is completely in Favour of England now. I hope they will whitewash Sri Lanka by winning the 3rd test match.