While executing the script in debug mode engine pauses the script run at a number of places to receive feedback (interaction) on what should be done next. For instance engine pauses: - Before executing a new script statement; - When error occurs while executing a script; - The whole script is executed. When running reload in debug we will have to process a number of GetProgress, GetInteract and InteractDone requests until the response to DoReload is returned. DoReload will send a response to the request after the script run process is finished (successfully executed/cancelled or "ended here").
Attached you will find an solution / project that contains an example on how to do limited load. Just set the NbrOfValuesLoaded to the amount you wish to load.