When using ImageEnMView for double-sided scanning, the program memory increases rapidly. I have set ImageEnMView StoreType := ietThumb Whether there are other settings that can reduce the memory growth during scanning.
All the images that are scanned to be stored in memory (until they are saved) so you should not use StoreType = ietThumb or only a low quality image will be kept of the scan.
If too many images are stored in memory they are cached to disk. If you are having memory issues (e.g. because your scanned images are very large) you can lower the number (default is 100):