If your Collaborator server is not working as fast as you would like there are a couple of things you can try:

1) Use a modern browser. The latest versions of Internet Explorer, Firefox, Chrome, and Safari all render much faster.

2) Make your reviews a reasonable size. Collaborator supports a wide range of review sizes, but reviews that are larger than 10x our recommended optimal size can become uncomfortably slow.

3) Make sure your database is fast. Collaborator spends much of its time accessing the database, so this needs to be as fast as possible.  If the database is not located on the same physical server as Collaborator, make the network connection to the database as fast as possible.

4) Try a different database. Embedded database is convenient for small environments, but with larger databases (~100k reviews or more) you should use external database: MySQL, SQL Server or Oracle.

5) Tune the server parameters. Try increasing the maximum heap size and/or tweaking the sizes of the various server caches.