Posting Large number of Tweets to Twitter

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server

Windows-service

twitter

Hi,

We have a twitter application that post to our users accounts. Currently we are able to post about 8000 tweets per hour (meaning 151 tweets per minute and 2-3 tweets per second). We have more than 17,000 users and we want to improve the speed of posting. Is there a way from Twitter api to post a large number of tweets other that the Post: Status/update? Or it depends on the server specification like the bandwidth of it?

Let me know if you want further information on the subject or if it needs more clarifications.

Thank you,