Warriors sit second in the URC table, but Jordan says there was frustration at not securing the bonus point that would have taken them level on points with leaders Leinster.
"The second half probably wasn't up to our standards and lot of boys were quite disappointed after the game," Jordan told BBC Scotland.
"At the end of the day we did get the win and that's helping us on the table and setting us up for the end of the season so we've got to take positives where we can.
"The standard's high in the group. Luckily, we've got a game this week to bounce back and try to put out another good performance which is the main thing."
Jordan has impressed again this season and, despite being born in Auckland, will soon qualify for Scotland on residency grounds.
A call-up has been predicted but the upcoming summer tour will be too soon for him.
"I think as I've got closer towards there, it's definitely been something that's popped up," he admitted.
"But, until that happens, my main focus is just playing well for Glasgow and for this season, trying to win us the Championship. When [qualifying for Scotland] comes around, I guess that'll be the see what happens."