Extremely slow web browsing with VoiceOver on websites with many dynamic updates, such as 9TO5MAC.

To the page you're having troubles with, that is. I ask because, if it's the website I found through Google, I am not having any problems with slow down on my iPhone SE 2022. Granted, I have not yet updated to iOS 26, so that could be an issue...

Note I go by heading no issue. I can go from story to story with no issue.
Another thing when you click on a story go by headings.
www.9to5mac.com

Are you using an add blocker? I find that a lot of these news sites have content that is constantly updated, which doesn't play nice with VoiceOver. Add blockers help some with that, although there are probably better ones than the one I use.

Also, have you turned off live regions? This makes VoiceOver stop interupting reading whenever new content changes. You can turn this on or off on a per site basis.

Also, if all you care about is the news that 9 to 5 Mac puts out, you might consider following them in the news app. I have Apple set up as a favorite, so get all Apple-related news in one place there. I read Mac Rumors in Safari though because I like reading their forums.

I don't really have problems in Safari with pages loading slow. I've gotten really tired of every page having some floating pop-up asking about cookies or using a native app though. Like someone else recommended, I highly recommend using an ad blocker, because many embedded ads are what cause weird behavior while using VoiceOver.

I know this because when i follow a link in the Twitter/X app, I hate their new web interface thing. It doesn't seem to honor my pop-up blocker, and there are often animated ads every screen or so, and VoiceOver often gets hung up on these and repeatedly announces timers for video clips and whatever else instead of reading the page content. Many sites are almost impossible to read when clicking them in X natively. There's a night and day difference reading them in Safari with a pop-up blocker.

This is what I currently use, for what it's worth.
https://applevis.com/apps/ios/utilities/ublock-origin-lite

I think what you are reporting is possibly similar to a long-standing issue I have been experiencing with VoiceOver responsiveness during content playback.

For a couple years now, I have experienced an issue where VoiceOver responsiveness is slowed when there is audio or video playing in the background. I experience this issue most in apps and websites where what appears to be video is playing, but it occurs with audio apps as well (albeit to a somewhat lesser degree). It is so bad that I have long since given up on reading news articles on my phone except through an RSS reader.

Under Settings, Accessibility, Motion, make sure the following are disabled:
• Auto-Play Animated Images
• Auto-Play Video Previews

These, along with a good ad block filter, should make your web browsing a little less headache inducing.