Car suddenly sluggish while driving

I have a 2008 VW Jetta S, 2.5L. 148,000 miles

I have fixed soooo much on this car already. However this morning while I was
on the highway it had a new issue I’ve never had before. While going 70mph,
all of a sudden it felt extremely sluggish and decelerated. I pressed the gas
pedal as hard as I could and it wouldn’t accelerate again, rpms did go up to 4-
5k and then back down to 3k. Then all of a sudden it was back to normal…a
few minutes later it did it again and I put my hazards on, got all the way over
and had to press down as hard as I could on the gas to get it back to normal—
after that it was fine for the last 15 mins of my drive.

No check engine light on at all. Haven’t checked fluid levels though.