'Do' and 'does' are both equally forms of your current indefinite tense on the verb 'to perform.' Which a single you are going to use will largely depend on the sentence's matter. Their usage is sort of identical, apart from just one instance where you can use 'do' instead https://financefeeds.com/polygon-winds-down-zkevm-strategic-pivot-towards-cross-chain-and-stablecoin-future/