How to set the delay time from a file updates until Index Manager updates the index.
Setting the index delay
Open the index properties and go to the Advanced page. Then set the Index Delay in the Indexing options section.
What this setting does
The index delay controls the number of seconds it takes from a file updates until Index Manager updates the index accordingly.
In an archive with much I/O it may be a good idea to increase the default setting of three seconds somewhat to avoid constant rewriting of the index. Decreasing the delay will create more index fragmentation (and result in longer search time) while increasing it will extend the time before file changes are visible and searchable.