Do you have an InfoPath browser form that takes very long to load? Or ages to react to clicks on controls on the form? Are users getting tired of waiting for the form to respond?
The way you design your InfoPath forms can have a major impact on how they perform when accessed through a browser.
The InfoPath Team has published a very informative series of blog articles on Designing browser-enabled forms for performance in InfoPath Forms Services:
- Part 1 - Introduction
- Part 2 - Postbacks and conditions that cause them
- Part 3 - Postbacks and the conditions that make them expensive
- Part 4 - Browser rendering issues
- Part 5 – Addendum: Counters for monitoring form server performance
- Part 6 – Addendum: Links to related performance resources
If you create InfoPath forms with the intention of deploying them to InfoPath Forms Services, it is a good idea to read these articles before you start designing your forms. In addition, the following MSDN article might also be very useful: Improving the Performance of InfoPath 2007 Forms.

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