If you are determined to use a budget provider upon your arrival to an airport, a shuttle bus to the office outside the airport grounds is the most likely scenario. The bus is provided by the rent-a-car company and free of charge but the customer needs to add the time needed to find the bus stop and the transfer to the total journey time. A queue at the counter of the car rental company is still a possibility.
Meet & greet procedure is usually quite efficient, although in some cases, a phone call to the car rental company may be necessary if their representative fails to be in the arrivals hall on time.
To make sure you don’t have to wait too long, contact the car rental company (via phone number provided on your car hire voucher) and let them know of your arrival as soon as you got off the plane, even before you have collected your luggage.