The opening crawl is a great way of addressing some of the problems with TPM.
It's the first crawl in the saga so it should set up in very broad strokes the bear essentials for understanding the film.
If it had a paragraph explaining that after a thousand generations the Republic is crumbling under it's own weight, that the Jedi after defeating their rivals the Sith a thousand years before are bound by a code limiting their authority within Republic borders and another setting up the Federation's claim to the planet the audience would have almost everything upfront without the need for expositional dialogue.
The current crawl contains some of those details but it's crouched in terms that are rather dull and taxation is a something most people go to the cinema to forget about.
Magnoliafan's slave plot adds menace but if the Naboo and the Federation are part of the Republic it doesn't make sense that the Jedi wouldn't stop it.