Thanks @Adlago I have added the define code without the backslash in constants.php

Also edited couple of images that were very heavy.

Still not much difference in score - D68.

Any clue of css sprites, how to serve scaled images and cookie-less domain...?

I see one of your users with the image F.
In order to have the effect of puting the line in constants.php - open a profile for this user and remove avatar.
Soft will automatically upload a new image F, but already with the size you specified in the constants.php

Also - replace a few more images with optimized for improved speed.

A little later I will give you an instruction to "onload" avatar images that slow down your mobile site.

Of course a cookies-free domain will write to you, but when you improve your site load a little more.

 

Well done. removed F image and that one change boosted to C70 score.

Wondering how to remove the image for all alphabets...?

Also new F image is 150x150 (previously 240x240) and not 34x34 (Im on desktop).

Waiting for optimizing avatar images, as we have tons on the homepage.

 

Well done. removed F image and that one change boosted to C70 score.

Wondering how to remove the image for all alphabets...?

Also new F image is 150x150 (previously 240x240) and not 34x34 (Im on desktop).

Waiting for optimizing avatar images, as we have tons on the homepage.

150 x 150 is also a large size. Most often used size 34 x 34 and 50 x 50.
This is a single color image and a white letter, so even less is the default size - it won't have poor quality.

For sprite images - your images are car logos you load with img src - in order to be able to use css sprite, you should change this part of your site.
Use this online sprite generator, for example

https://spritegen.website-performance.org/

How to remove or reduce this 1.1s initial wait time?

Just tested with plain page with couple of text and still it takes 4.5s to load.

https://carnity.com/class

https://gtmetrix.com/reports/carnity.com/nu8cfJAp

 

 

 

How to remove or reduce this 1.1s initial wait time?

This waiting time depends on your main server - it produces an html file.
How to improve this - consult with your host company.

Thanks for the prompt response.

Is this server issue is on the mysql side or hardware or config issue? We are on dedicated server.

Where to find the HTML, couldn't understand it, appreciate if you can please explain.

Once your server accepts a request for access to your site - the server starts using IPS software - generally speaking, ie. executes your global template, and prepares an html file to send to the client. This creation time of this html file is a waiting time.
How long a server will create this file depends on the speed and other parameters of your server.

That's why I wrote to you to consult your host support.

 

 

A little later I will give you an instruction to "onload" avatar images that slow down your mobile site.

Of course a cookies-free domain will write to you, but when you improve your site load a little more.

Any update on these two points, today?

For "onload" img, i am still experimenting with html from your source code and when i have a good result i will write an instruction. Finding a solution in this way is a slow process and involves too many analysis.

Using a cookies-free domain I am not sure if it will conflict with your cloudflare plan.