Hello there ,
I’m sorry I don’t speak Chinese but I think this can be helpful.
I was using the picture compressor tool you mentioned on your page here: 5ea.org/page/4/
While tinypng.com does a good job, I just wanted to share about another tool, that I think looks better. After some exploring I found this other tool and I wanted to suggest you show it along that one. https://www.websiteplanet.com/webtools/imagecompressor/
This tools allows you to compress both jpeg and png files and each picture can be up to 50 MB in size!
In hope I helped back,
i will try it.