’88 Acura Integra Engine Roars on Cold Startup.

When I start my 88 Acura Integra in the morning, it races, at a steady pace, at 2000 RPM, then slows to 1500. Within 3 min. it’s at normal idle.
It’s not a big hassle, because it runs great the rest of the day, but, I don’t think the 2000 rpm is good for the cold engine.

Any ideas, or should I just keep the oil changed and not worry about it?

dano