There are, in my experience, two types of websites:
- Websites which are slow; and
- Websites which are noticably slow.
It’s important to understand which of these categories applies to your site.
If the people using your site tell you that they think it’s slow then you are definitely in the second category.
What you can do about this?
- Measure your current performance
- Identify possible improvements
- Understand best practices
- Realise that you’ll never be finished
Also, you can make sure that you include time in your work plans to make small performance improvements whenever you make changes to the site. This is important because (despite developers expectations to the contrary) it is unlikely that the day will ever come where you’ll be able to stop working on new features or bug fixes in order to just focus on performance.
Making your site faster needs to be part of what you constantly do, rather than something that you hope to have time to work on at some point in the future.