Brighton continued to have the better of the chances in the opening portion of the second half, with Spurs keeper Lloris saving from a Ben White shot before Neal Maupay headed wide of the target shortly after.
"But at the same time, he is young and learning to be a Premier League player, a Premier League goalscorer".
Earlier Sunday, Thomas Tuchel earned his first victory as Chelsea manager, as the Blues ran out 2-0 winners over Burnley.
Leandro Trossard's first-half goal consigned a sluggish Spurs to a 1-0 defeat on the south coast as Mourinho's men missed the chance to put pressure on the top four after Leicester City and Manchester United dropped points this weekend.
Mourinho told BBC Radio 5 Live: "Not good in the first half, better in the second".
"You see good teams look like bad teams and vice versa". 'There was a lack of energy.
Fourth-bottom Brighton moved seven points clear of the relegation zone after extending their unbeaten league run to three matches.
Aaron Connolly and Adam Idah missed Ireland’s crucial tie v Slovakia. Pic Stephen McCarthy Sportsfile
"The last 25, 30 minutes I saw a team ready to give everything, gamble everything and finish the way we finished", he added.
Gross expertly picked out by Mac Allister and he cut the ball back for Trossard, who steered the ball in at the near post.
Defeat for Spurs, who were without injured star striker Harry Kane, dealt a further blow to their hopes of Champions League qualification.
The Seagulls were the only team in the top four divisions in England without a home league victory this season, but they finally ended that dismal sequence at the 11th attempt. "When you lose a player of Harry's quality, other players have to step up and hopefully Bale can help us", Goal.com quoted Mourinho as saying.
Federal Bureau of Investigation agent killed and others injured serving arrest warrant in Florida
Police said there was a heavy police presence in the area of 4200 Nob Hill Rd. and that the street was closed in both directions. More officers have gathered outside a hospital where victims were taken.