We have been using the ASP.NET AJAX UI product for a client since 2012. I have had 8 staff members working on it full time since 2012 so as you can imagine, this is a gigantic application. Over the years the client has requested more and more features and the most important page in the application is now very heavy and taking a minute and a half to load out in the field on a tablet. The frustration level is at a breaking point. We absolutely must improve performance.
1. Do you think upgrading to the latest version would give us a significant performance boost?
2. If we upgrade are we going to introduce a whole host of new issues?
3. What are the best tips/tricks for optimising pages heavey with telerik grids, tabs and dropdowns?