is there a way to set the serverless sleep time to something other then the standard 10 minutes?

i've got a microservice which isn't used much at all, in prod probaply like 24 times a day at max for one endpoint call each time. with quite some time between each call.

so i'd like it to go back to sleep as soon as possible after the request is finished

i know it wouldn't save THAT much usage fees by setting it to 1 minute instead of 10 for example, but every resource saved will count up at the end of the day.
this is a lightweight api which i'm talking about, it's python flask and starts fast. however, the chromedriver from the dockerfile image, which is used in it to use playwright, eats some memory..