Bluring when compressed img

Hello!
I’m using Photoshop 2025 to optimise some img for my website, just changing the sizes because I want to not loose quality, but some kb so I’m going from 2048 x 1365 px to 542 x 365 px witch is the adjustment need it on my website.
I tried to save them in .jpg, .png but the image loose lot of quality. I selected hight quality but it’s still same. I can not loose so much quality because it seem blurred in the website.
The images I’m trying to optimise and make small are the ones with yellow/orange background in my website macufy.com you can try them there and see the size. In the same url of these images, I uploaded the optimised ones on 542 x 365 px like _opt.jpg

Can anyone tell me how to save these images downgrading the sizes but with same quality?
I also tried the tool Adobe has to do it online, and the quality is less than in PS 2025.

Thank you!

This forum is focused on developers. You should try posting your question on community forums

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