wanting

[comicer]

I'm not a native English speaker.
May I conclude that we should use Simple tenses rather than Progressive tenses when using verbs of perception such as "want", "hate", "like", and etc.

[Tdol]

Generally, yes. You will see progressive forms used occasionally.

With 'like' we have the alternative of 'enjoy', which does have a progressive form- a waiter will ask if you're enjoying your meal, so the rule isn't 100% concrete, but it is a tendency.

Some have different forms according to use:
The cheese smells delicious. (Giving of a smell doesn't have a progressive form)
He's smelling the flowers. (the action of taking smell into the nose does)