Too many ofUser queries on Openfire

We have implemented chat using open-fire. Everything works fine except for that every I load my page, Many(no. of users on chat) queries are getting fired.

    SELECT salt, serverKey, storedKey, iterations, name, email, creationDate, modificationDate FROM ofUser WHERE username='1'

    SELECT salt, serverKey, storedKey, iterations, name, email, creationDate, modificationDate FROM ofUser WHERE username='2'

    SELECT salt, serverKey, storedKey, iterations, name, email, creationDate, modificationDate FROM ofUser WHERE username='3'

    ..

    ..

    ..

    ..

    SELECT salt, serverKey, storedKey, iterations, name, email, creationDate, modificationDate FROM ofUser WHERE username='100'

Please help as i feel these many queries on page load will shut down by server at peak hours.

Is there any way to cache these queries?