I am using PVRTexToolCLI to convert png/jpg/bmp file to pvr file. I have observed that huge time is taking to convert to pvr format using ETC1 format option.
What is the best option to convert to pvr without much time delay and without resizing dimensions of the input image?
Compressed texture formats generally take a while to compress due to their complexity - ETC1 is no exception here. If you want a decent quality but fast compression, you can use “-q etcfastperceptual” to use a balanced but faster compression method. When you’re ready for final release though, we usually recommend using the default ("-q etcslow") or “-qetcslowperceptual”.