'Do' and 'does' are the two forms from the existing indefinite tense on the verb 'to perform.' Which just one you may use will typically rely upon the sentence's matter. Their usage is sort of similar, aside from just one instance where You can utilize 'do' instead of 'does.' https://financefeeds.com/bitcoin-dips-below-104k-amid-profit-taking-and-market-uncertainty/