Back from Lyon I checked some of the things I did there on my old laptop to see how they went on my Windows 10 PC.
One of them involved the setting of ExtraSquads to 17, which was mentioned in Uriah's recent thread.
It maxes out the formation size

When I flew this mission in UAW160, I expected a massive framerate hit:
In win 10 my normal max FPS is 30


64 spitfires selected for my own flight, and multiskin versions loaded!

I made a Bandicam video of the mission. The version I have is the free one, so it has their logo and I am not able to edit it. It takes a while to download as it is 500 MB!

http://www.mediafire.com/file/d3rx9g3juseee87/BigFormation.mp4

Screenies:



35 enemy bombers shot down- the AIs were working

So you are saying you did NOT have a massive frame rate hit. That the game was rather smooth?