Yes, the current standard rate limit is 10TPS for content moderator. If you need to increase this quota there is an option to contact our team through Azure portal from the help+support blade. Choose issue type as ""service and subscription limits(quotas)"" and select your subscription along with quota type as ""Cognitive Services"" and provide details of your new limits.
Once the request is submitted it will be reviewed by the team and you will be contacted for more information. We hope this information helps you in getting started with the service.
Source: Azure Documentation