Ryanair - No check in bags question

I am flying out of Dublin next week with Ryanair and I have no check in bags just cabin bags, I'll have my boarding pass with me so I presume I can head straight to security? and is the recommended time to arrive still 2 hours before flight at Dublin Airport even with no check in luggage?

Also when flying back (from Tenerife) is it the same, I just rock up to the airport with my boarding pass and go straight to security?

Thanks so much