Backoffice very slow after w3 total cache

Hello @dorasousa

I am sorry about the issue you are experiencing and I am happy to assist you with this.
Can you please share if you enabled Database Cahcig or Object Caching and set the caching method to Disk?
Also can you please share the website URL?
Thanks!

Hi Marko

I only activate database cache, object is not activate. If I don’t activate database cache I can not see any better performance.
URL is Imprensanacional.PT

Thanks
Dora

Hello @dorasousa

Thank you for yoru feedback.
I understand what you are saying, however, this may come as a price for the backend of your website especially if you are cashing to disk.
WordPress website utilizes database quite a lot. And database caching allows decreasing database usage. Database caching allows to cache database request results.
Database caching can make your site faster if the time needed to get data from the database is more than the time needed to get data from the cache.
So, if you are on shared hosting, then memory-based caching like Memcached or Redis is likely to be unavailable for you. And disk-based caching (when it comes to database caching)is not that efficient. In other words, if you are on shared hosting, it’s recommended not to use database caching.
Moreover, using disk-database caching (on shared hosting) can make your site slower. This is so because getting data from the database can be faster than getting cached data from the disk.
I would recommend checking with your hosting provider if you can install PHP modules like Redis or Memcached and use one of those for Database Caching.

Thanks!

Hi Marko, So you think that with that change we will be able to work in backoffice?

Our site is in Azure.

Thanks
Dora

Hello @dorasousa

Thank you for yoru feedback.
This is may also be impacted by the hosting plan and hosting resources.
Upgrading your hosting plan (if on shared hosting) will also provide more resources and also better backend performance along with more caching solutions.
Thanks!

Hi Marko
But with those requirements I think that we will have more costs. There is no other way so we can faster our site without affect backend and not increase costs?
Maybe other plug-in?

Thanks
Dora

Hello @dorasousa

Thank you for your feedback.
Yes, you are correct. This starts with your hosting provider. Slow and limited shared hosting offers limited resources which no plugin can fix.
What you can do is to try and check the option “Don’t cache queries for logged-in users” and select/deselect, save all settings and purge the cache and see if one or the other helps.
Once again, caching database do disk should be considered as the last resort, and it’s recommended to use Memory-based caching for this.
Thanks!