I must've just had your same pilot. Flying from Saigon to Phu Quoc on an A321 take-off was fast and very steep, and landing was like a cork in a river ending with a slam onto the runway with passengers even screaming out in surprise and fear and some reaching for the barf bags.
Nothing really against the airline, as they've been great all the way for me on this trip; but the pilot on that one flight was definitely thinking he was flying something other than an airbus full of foreign tourists bound for a tropical island.
On the other hand, the brand new A350 that flew us in from Hong Kong was so gentle and smooth that we barely even noticed any aspect of the flight.