@Steve Haemelinck , Apologies for my late response from over the weekend.
Since you have posted the question on azure-webapps tag, I presume you’re leveraging Azure App Service WebApp.
As Lextm mentioned. as a quick step to remedy the performance issue, try these:
- Scale-up your App Service Plan to an higher tier and check
- By default,
wp-cron.php
is executed on every page load, which on high traffic sites this can cause performance issues. - You could enable Application Insights, see doc, to determine your latency is occurring.
In general, there are multiple steps you could take to improve page load/response times, kindly check out these, and apply depending on your scenario.
With below best practices or at least some of these, you will have a WordPress site running at better speeds.
1.Reducing HTTP requests.
2.Optimizing the database
3. Turn-off off Pingbacks and Trackbacks if you don't use it
4. Caching
5. Diagnose if any plugin is slowing down your site
6. Diagnose if your theme is slowing down your site
7. Compress Images
8. Specify Image dimension
9.WebApp and database in the same region
10.Use Azure CDN
For more details on the above points, please check the links below:
WordPress Best Practices for Performance
How to speed up your WordPress site on Azure App Service
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