I'm flying in to Terminal 1 (on UA) on Wednesday and will be connecting to Terminal 2F (AF). Does anyone have any recent experiences on how long I should expect this to take, or any shortcuts to take to make the process as quick as possible? I have a pretty tight connection time (1hr 25mn) but apparently it's legal. I just want to know how fast a sprint I should expect to make.

Note: I'm not checking any luggage...

Thanks in advance!

Edited to add: I did a search but found items that were either A) too general, or B) super outdated.