The advice to arrive three hours before departure has been reinforced.
In July, the north-west hub said that 92 percent of people passed through security in 30 minutes or less.
According to the airport, more than 85% of passengers got through security in less than 30 minutes, and more than 75% in less than 15 minutes.
Swissport apologized after a Channel 4 Dispatches investigation showed passengers crawling through a baggage hatch to help unload bags.
The firm apologized for their part in the disruption at Manchester airport.
The airport continues to work closely with all the third parties that are responsible for the other processes like baggage, check in, immigration etc to provide support where needed.
The advice of arriving three hours before your flight, no earlier or later, can add to the issue and create unnecessary lines.
More than 3.5 million people are expected to use Manchester airport this summer, making it the busiest period since the beginning of the Pandemic.
Since travel restrictions were removed in March, the entire aviation sector has faced challenges.
In order to overcome some of the issues it faced earlier in the year, and to ensure it can operate all of its airlines' planned schedules this summer, the UK's third largest airport has recruited more than 600 new colleagues since the start of the year.
Since the beginning of the year, 600 people have started work in security, with another 280 waiting to clear background checks, said Ian Costigan.
The experience provided to the majority of our passengers has improved as staff numbers have grown.
Third parties at the airport are supported by us.
By the autumn we should be back to an improved experience that people are looking for from Manchester airport and in a better place for summer 2023.