Aud 80 B4 2.3 NG no power

Hello first of all πŸ™‚ So I’m starting to get a big problem: I bought an Audi B4 about 3 months ago with the NG 2.3 engine where I’m really happy with it. now to my problem since ca 2 to 3 weeks he pulls totally bad when he’s cold it’s really good as soon as he’s bit warm I have a feeling like he’s clogged or so I push on the gas and he needs forever until he’s up but what’s funny from time to time beko Is he something like a push and then suddenly still to pull on that goes but easily 3 sec long so and then he cacts again from where it can lie ?? has already over 300000 down but top maintained. I am totally anungsloß where it might lie πŸ™ would be happy about a quick answer thank you πŸ™‚ sorry because of the spelling flaws speak 4 spoke only that with the spelling hapert bischen XD πŸ™‚ oh yes what I still forgot he jump bad at speaking when I am a I didn’t drive for days he jumps well but as soon as I turned him off and again he has to turn ka 4 sec until he jumps and the speed goes up almost to 2000 revolutions had still the problem that he was retrofitted to euro 2 electronically have the part off and he jumped from there on better at falses that helps you somehow further πŸ™‚