how can i make my page speed better?

[domainnamepk]

i have a page speed 40 on mobile and 67 on desktop how can i make it efficient and what's the ideal speed of a site? i really need to learn that.
thanks

[irfan]

Ideal load time for a website is 3 to 4 seconds. you have to sacrifice the image quality to increase the overall website's speed.

[Pravin]

Try using gtmetrix tool. This will help in understanding the webpages issues that needs to be fixed. And even after fixing the issues you have the same page speed issue, you might need to upgrade your hosting plan.

[StuartSpindlow]

Visit here https://developers.google.com/speed/?hl=en