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Very slow filtering and browser rollback problem

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The support doesn work on Saturdays and Sundays, so some Friday requests can be answered on Monday.
Spirale(@spirale)
5 Posts
Customers
February 17, 2025, 11:26

Hello

We are experiencing some difficulties with the “Products Filter” module.

Website with filters :
https://lfmachines.fr/categorie-produit/oeillets/

Namely, our site offers many products that each have many variations.

1 - Filter slowness:
When we filter, it can take up to 15 seconds to load.
We've tried activating the module's Turdo mode, but the difference in loading time isn't obvious, and filters in some categories tend to disappear after a while, as if the module wasn't able to regenerate the JSON file correctly.

2 - Browser backspace
If you select 1 filter, then a second and then backspace the browser, filter 1 remains active, but the products are no longer filtered and are displayed in their entirety.

Thank you in advance for your help on these points.

#1
Pablo Borysenco(@pavlo_borysenco)
34,196 Posts
February 17, 2025, 12:39

Hello

  1. Please read this - https://products-filter.com/searching-is-slow
  2. In your case, you just change the state and this is correct behavior from the browser's point of view, because before the state was changed, the filter was selected. And the plugin cannot affect this.
#2
Spirale(@spirale)
5 PostsTopic Author
Customers
February 18, 2025, 15:35

Thank you for your feedback.

1. We have implemented some of the recommendations (cache and optimization module, memory limit increase, etc.).
We can't switch off ‘dynamic recount‘ in the filter and ‘hide empty terms‘ options because we need it.
Loading times have improved in some categories, but the “œillets” category, which has the most variations, still slow to filter.
Is it possible to optimize this further?

2. Sorry, we didn't understand your answer.
Yes, it's normal for the filter to remain checked after the browser has been rolled back, but why isn't the filter applied to search results?
An example of the bug:
https://lfmachines.fr/categorie-produit/oeillets/

  • Check"Bâche" filter
  • Filter results OK
  • Check"Cuir" filter
  • Filter results OK
  • Back browser
  • Only"Bâche" filter checked (OK)
  • Displays all products in the category (Not OK - Only"Bâche" products should appear)

Is this the normal behavior of the module?

Thanks for your help

#3
Pablo Borysenco(@pavlo_borysenco)
34,196 Posts
February 19, 2025, 11:56

Hello

  1. Have you enabled filter caching? - https://share.pluginus.net/image/i20250219115333.png
  2. This is normal behavior for any element on the site that has a toggle function - https://c2n.me/4mjs4LQ
#4
Spirale(@spirale)
5 PostsTopic Author
Customers
February 19, 2025, 13:02

Hello

1. Yes all filter caching are enabled : https://i.goopics.net/l8hx3d.png

2. I'm sorry, I didn't realize that the filtering was no longer working… I suppose that's why you couldn't see the difference.
I disabled Autoptimize and WP Super Cache plugins, delete cache, but the bug remain. I don't know what happened.
https://lfmachines.fr/categorie-produit/oeillets/ ->"Carré" Filter should show only 1 product, others filters don't work too.
https://i.goopics.net/iahwbk.png

Tell me if you need an admin or a FTP acces.

Thanks

#5
Pablo Borysenco(@pavlo_borysenco)
34,196 Posts
February 20, 2025, 11:01

Hello

Please try to disable SEO URL  and  do  a test

 I suppose that's why you couldn't see the difference.  - I saw the difference, but the problem is not in the filter, it's basically how the browser works! Please  watch  this  video - https://c2n.me/4mjs4LQ

#6
Spirale(@spirale)
5 PostsTopic Author
Customers
February 21, 2025, 13:55

Disable SEO urls correct the filters problem.
Ok for the browser.

Filtering is still slow on some categories, exemple :
https://lfmachines.fr/categorie-produit/presses-et-machines/matrices-machines/
or
https://lfmachines.fr/categorie-produit/oeillets/

We :

  • Install Autoptimize and WP Super Cache plugins
  • Add more memory (1256M)
  • Use PHP 7.4
  • Activate ‘Cache dynamic recount number for each item in filter‘ and ‘Cache terms‘ (weekly clean cache)
  • - No, with mask"product-category"

We didn't switch off ‘dynamic recount‘ in the filter and ‘hide empty terms‘ because we need it.

Any other idea ?
Thank you.

#7
Pablo Borysenco(@pavlo_borysenco)
34,196 Posts
February 24, 2025, 12:10

Hello

My  test - https://share.pluginus.net/video/v20250224120433.mp4  - I can't say that this filtering is very slow. Wait, the cache needs to warm up to work effectively.

try updating php to version 8

#8
Spirale(@spirale)
5 PostsTopic Author
Customers
March 11, 2025, 11:40

Hello

Thanks for your help.
We activate PHP 8 and let some times for the cache to warm up.
It's a lot better now.

#9
Pablo Borysenco(@pavlo_borysenco)
34,196 Posts
March 11, 2025, 12:27

Hello

Great! Welcome;)

#10