My blowers seem to be exceptionally slow even when on speed 4! It takes 5 mins to clear window before I can start driving!

Anyone have any advice? Should it be better?

Do you mean they're spinning slowly? Or that it's just slow to clear - as I think that's normal? My Fabia seems to like holding moisture inside the car too.

The resistors sometimes either blow or get progressively worse and then blow.

It's so common that there is even a website documenting it:

http://www.blower-motor-resistor.co.uk/skoda-fabia-blower-motor-resistor.html

Change your pollen filter

Change your pollen filter

Do this NOW!

You should see the state of them! Changed mine recently, extremely filthy and even leaves in there too!

Pollen filter is under the footwell passenger side right?

Pollen filter is under the footwell passenger side right?

Correct

Check my build thread for the state of mine...Real eye opener!

Somehow I had fag wrappers in my pollen filter.