Is there a recommendation for the maximum page size in the Grid? Perhaps some point when performance gets sluggish or the browser starts to choke? It will be running on modern computers (<2 years old). Thanks.
If you have a hierarchical grid, it is better to limit the items presented in each level at once to 10-15 at most. For more information, on optimizing grid performance, when large number of records are presented, you can refer to the following help link: Client/server grid performance optimizations
You can switch to CustomPaging, when you have more than 100 records to display in a flat grid as mentioned in the help article above. Check out the following link which will help you achieve CustomPaging on your grid. Custom Paging