EMA does not provide any method to avoid too many updates. It passes all updates as it receives from the server e.g. TREP(ADS/ADH) to the application. Anyway, TREP provides Conflation feature which can specify the time interval at which updates will be sent. For example, set interval 1 second in TREP, TREP merges all updates e.g. 5 updates received from the feed within 1 second then it will publish as one update to EMA. Then, EMA passes the update to the application. Hence, you can avoid too many updates e.g. from 5 updates to 1 update using Conflation feature in TREP. If you are interesting in this feature, please contact Thomson Reuters Account team.