By David Anderson It’s there in black and white as Liverpool’s stand-out result of the season – but Jurgen Klopp claims Liverpool must improve on their win at Arsenal last month. Klopp can see beyond the impressive FA Cup scoreline and knows Mikel Arteta ’s men should have scored before Liverpool snatched victory at the end. The Reds return to the Emirates Sunday in a massive game in the title race and Klopp wants his side to have more control. “What we learn is that we have to be much more dominant in possession,” said the Liverpool boss. “It was a typical away game. Yes, we had a few problem…