This depends on the Data Source it's coming from, but we currently offer Sync Bridges that bring data in as frequently as every 15 minutes (faster if on our Business Critical plan).
Additional intervals offered include every 30 minutes, 1 hour, 2, 3, 6, 8, 12, and 24 hours.
Depending on your organization's specific needs, you might want to consider our Business Critical plan, which offers additional synchronization frequencies.