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ashthornton / asscroll

Ash's Smooth Scroll 🍑
MIT License
947 stars 27 forks source link

Position fixed seems to kill performances on safari #84

Closed Hugofgx9 closed 2 years ago

Hugofgx9 commented 2 years ago

Hello,

I worked on a website with asscroll (https://www.louisefantozzi.com) and I have a performance issue on Safari. I've done a lot of research and I think the issue is using a fixed position, which performs poorly with large content on safari.

I've benchmarked several other scroll libraries, and they mostly use absolute position which seems better. I don't have free time right now to do a pull request but I'll try to come up with something asap. @ashthornton is there a reason why you use a fixed position rather than an absolute position ?

ashthornton commented 2 years ago

Hi @Hugofgx9, fixed position is necessary because ASScroll will sync the native window.scrollY position when possible and if absolute positioning was used the page content would move after the sync since the page is positioned relative to the document root which has been scrolled. Feel free to experiment and let me know if you find a better solution though!