It marked the Hammers’ first win at home this season, while Ipswich remains winless.

The hosts went 1-0 ahead after 48 seconds through Michail Antonio, West Ham’s earliest Premier League goal on record.

Having been pegged back to level terms just five minutes later when Liam Delap scored after a corner, Lopetegui was pleased with how his side set about regaining control, with Mohammed Kudus, Jarrod Bowen and Lucas Paqueta on target.

"We started better but we suffered a very early goal too. We conceded from the first corner and maybe we could have done better. It was key as the team then showed a strong mentality," he said.

"In the bad moments, you have to be strong. We did against Brentford and we did again today. It's important to highlight as it will help us become a better team."

West Ham proved the dominant force, registering 23 shots with 17 of them coming from inside the box. It meant Lopetegui’s men accumulated an expected goals (xG) total of 3.17 by full-time.

"We're happy when we win. We work for this. We're happy for the fans as they deserve this and for the players as they are working very hard. It was against a good team. They didn't lose to [Aston] Villa, Fulham, Southampton, Brighton [and Hove Albion] so it's a good win,” he added.

For Lopetegui's counterpart Kieran McKenna, the result was another stark reminder of the challenges the Premier League presents for a promoted side.

The Tractor Boys sit in seventeenth, just one point above the relegation zone.

"It ended up a disappointing day for us. There was a large majority of the first half in which it was a competitive game that was evenly fought. We played some good football but we conceded poor goals which changed the momentum of the game," McKenna said.

"We didn't deal well enough with the direct play. The goals came from those moments so there's a lot for us to learn."

Ipswich allowed its opponent 28 touches inside its box, while it was reliant on the woodwork to stop West Ham from adding to its lead.

"They didn't have to work hard for their goals. Apart from the fourth, the goals came too easily. They have quality and they showed that with the goals and chances they created if you give them opportunities," reflected McKenna.