We tested the switch with an index of 500 pages.
The switch was made in less than 3 seconds.
Are the files in index A on a network drive?
When working with files on an external hard disk, USB drive, or network drive, the speed becomes slower.
I am attaching the previous version (hope this solves the problem)
download file is upperside "DelgaEditor8Pro126.96.36.199.zip (38.63MB)"