Feeling sluggish

I just purchased my e28 a few days ago and I notice that my car feels a little sluggish when I push the gas pedal never owned a BMW let alone one this old, is this normal or should I look further into it. Already did the tune up and changed all the filters..... what now?

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What kind of e28 you have would help. If it is 528e then the n it is just slugish or 524 then it is also sluggish. If it is a 535i then you might chech the fuel injectors.


Andy