[@Peter Blaise] Thank you for your detailed feedback! ‘Optimize’ can be misleading though. This is an option for webmasters who need to follow Google’s rules for smaller images on the sites. People have thousands of images on different pages. Total Image Converter from Coolutils takes them and compresses them to a smaller size keeping the visual quality. So it does not work with RAW images, the whole idea is different.
If you convert RAW to TIFF or JPEG, it will work fine.
Total Image Converter is a batch converter. It does not offer any additional image processing. It shines when you have 10,000 old DNG photos and you decide to save all of them as smaller JPEG images. With TIC you can do it in 3 clicks.
Thank you again for all your feedback! I appreciate that.