Drinking fast... also speaking fast...
But why? Clearly, they're not savouring Italian wine. ...seems a shame.
Perhaps they're drinking grappa. Not much to savour there.
Non è raccomandato bere il vino italiano velocemente!
5 syllables to say 'fast', sigh
Many adverbs are formed by adding -mente to an adjective....
Much like how we add -ly to words. E.g: quick -> quickly, veloce -> velocemente