An issue with acceleration on 1993 Volvo 850

When I first turn on the car, it won't go about 25 or so for a couple of minutes. After that, when I'm accelerating it stall for a second, every so often...kind of a 'sputtering'...it's a popping like action.

2 answers 2 comments
the car way be on limp mode is the check engine light on? Limp mode comes on when there's a problem with the car its purpose is to protect the car but not to leave you stranded.
The service light first comes one when I start up, but goes off after a couple of minutes. So is there a way to get it out of limp mode? Or is there some repair that needs to be made??
How about the transmission upshift arrow, is it flashing?
The arrow isn't flashing.