4
Extension to load multiple tabs slowly ?
(lemmy.ml)
Dunno any, but maybe your browser allows throttling connections? Gecko (Firefox's engine) would be a good contender, I'd say. It has a settings page among the about: ones with quite a lot of options.
IE7 is well known for being shitty. Have you considered using a modern browser?
Dunno if it's the OP's case, but setting a macro in Newsboat to run random-unread ; open-in-browser 50+ times is likely to make any desktop browsers lag from my experience, so I'd disagree with the culprit being an outdated browser or a poorly-optimized one.
This is the community to discuss about browsers.
Open Source browsers
Closed Source browsers
List will be updated