You can set the intervals in the backend configmap located in /templates/backend/configmap.yaml
identity: job: configuration: schedule: ${IDENTITY_SYNC_JOB_CRON:0 0/15 * * * *} # Every 15 minutes
ownership: job: configuration: schedule: ${OWNERSHIP_SYNC_JOB_CRON:0 0/30 * * * *} # Every 30 minutes
homepage: job: configuration: schedule: ${CATALOG_HOMEPAGE_SYNC_JOB_CRON:0 0/5 * * * *} # Every 5 minutes