Ghost 15 unusable slow with maps containing several thousands of files

Norton Ghost 15 has problems with maps containing several thousands of files.

 

When restoring a map containing several thousands of VERY SMALL files, the speed of the restore process slows down significantly after a couple of thousands of files. After 3000-5000 files it takes SEVERAL SECONDS FOR EACH FILE TO RESTORE, and the process is getting slower and slower.

 

Example: restoring one map containing 7000 small jpg thumbnails (each file 1-7 kB, totally only 25 MB) takes approx 3 hours to restore.

 

System info:
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Ghost 15.0 Ver 15.0.1.36526
Win 7 Pro, 64 bit, Intel i5 2.67GHz, 6GB RAM
No other programs were running during the restore process.
It doesn't matter if the restore is made from an external HD or from a drive on the computers internal HD, the problem is the same.

 

Can this be fixed?  Otherwise I will send the software back and get a refund.