Slow opening big size picture

It fixed the prob with multiple-tasking
But I dont understand why it is slow when open pic which is big in size (NOT the file size)
Plz read what I wrote below last time
---------------------------------------------
It fixed the problem of crashes when opening big size photos. But it still a bit slow to open pic with a bit high dimension(eg 2736x3648), even the file size has been compressed to pretty small. Also I found that it takes much longer time to load a landscape than a portrait pic.

I have some suggestions for you to improve on your interface.
- touching the name of the picture should NOT be the option for changing the file name. I always tried to open the pictures but finally turned out changing picture name (ur competitors do good job on this, u can check them out)
- if password protection can be applied to individual folder then ur app would be perfect; I would give you 5 stars

GPS_Lover about Photo-Sort