PKI storage revoke slowly

Hello,

We are using vault with pki storage, our certificates has a life-time 3 months, but we need to revoke certificates before that time, but the vault api to revoke certificates is so slowly, about 1 minute to revoke certificate, there some of configuration to better that? I think our crl is quite big, because the revoke certificats and the life-time is quite big.

Thank you