Thumbnail Generation Delay when Adding Large Resolution Images

[vyshak-vijayan]

Hello,
Thanks a lot for the great control.It has helped me a lot :)

I would like to report an issue which i experienced when trying to add very large resolution images to ImageListView.
The thumbnail generation takes a lot of time when scrolling the list view with around 1000 large resolution images.

Res: 5000X3000 pixels Size:~16MB
Sample File: https://drive.google.com/file/d/1Qgu_aVXBiMlbHluJFU4fBvmFC45-E81C/view?usp=sharing

You can replicate the issue by making copies of this image

The cache mode is set to onDemand and the CacheLimit is set to 200MB I have tried increasing the cache size,but this does not seem to help.The Continuous cache mode seems to solve the problem,but the image thumbnail generation process takes a lot of time and consumes system resources.

Can you please take a look at this
Thanks
Vyshak Vijayan