Downvoted for proposing a poisonous idea. There IS an obvious and common dichotomy between being productive and experiencing positive emotions and pretending that it isn't there is bullshit that will only cause people to burn out and be even less productive AND less happy. Yours is the kind of attitude that leads people to say "I can never be as good as this amazing guy so I won't even try". Satisficing morality and happiness separately will get us far more of both.

You certainly can find productive tasks enjoyable, but it's common to find productive tasks unenjoyable. People don't hang out with each other because it's productive (except when networking), they hang out because it's fun. The fact that it's good for your health is a bonus, but isn't and shouldn't be the primary motivation. [...] Not obviously morally optimal, but it is actually morally optimal, for a broad enough sense of "having fun". But I say this as an ethical egoist.