Why did page load times suddenly spike to 20+ seconds?
Page load times can suddenly jump from a normal 6-7 second average to 23-25 seconds, severely tanking mobile Lighthouse and PageSpeed scores. This abrupt slowdown ruins overall site performance and leaves pages taking far too long to render.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1enabling caching and CDN plugins
- 2optimizing images and web fonts
- 3removing unnecessary visual effects and heavy scripts
- 4Upgrading versions like 26.2
- 5Using APM, screen recordings, and .har files to gather data on different records
- 6Raising a support case
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
r/Netsuite1 person · September 2026
r/Wordpress1 person · September 2026
“I'm working on a WordPress website for a car dealership and I'm struggling with performance, especially on mobile Lighthouse/PageSpeed.”source ↗
Loud-Researcher-9890 · r/Wordpress
Where this came up
People with this problem also raised
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- 2Why are browser adblockers breaking page elements and modals?
- 6Why is the 2026.1 software update so slow?