He told the Premier League's website: "Clearly everything in the world of VAR is not perfect. We’re aware of that and we know we have got work to do. Where the VAR experience is poor is the in-stadium experience for the supporter. It’s nowhere near good enough. We know it’s not. It affects supporters’ enjoyment of the game, and we know it needs to change. We are constrained in what we can do by IFAB, [which] is very clear at the moment we cannot use the audio."
He added: "We're doing too many [VAR] checks and we're taking too long in doing them. To a degree it's understandable given the level of scrutiny these guys are under, from ourselves, also from [the media] as well as from supporters. But the reviews are taking too long and it's affecting the flow of the game. We're extremely aware of that and the need to improve their speed, whilst always maintaining the accuracy."