Hi, sincerly I don't know if it's you're mod or my computer who have a problem but my game freeze a lot, on the geoscape/Air combat and in ground combat randomly. (I don't put any Screen or save for obvious reason but if you really need these I will give them)
I have some mods from the workshop who's not in the X:CE :
Xenonauts Fix Pack
Ultimate Ambient Sounds
UFO and crew diversity
More Civilians and Local Forces
More Civilians and Local Forces - Furies, Terror, and Dreadnoughts Oh My
Ultimate Ambient Sounds
Tropical and Swamp Tileset
Khall's More Portraits
Khall's Tundra Tileset
Lore+
Random Map Pack Arctic Collection
Random Map Pack Desert Style
Random Map Pack Farm Edition
Better Armour Graphics
(I have launch a new game without "UFO and crew diversity" with no change)
Edit: I've forget to say the most important... When I have a freeze I need to close the game by the Windows Task Manager because that's like a crash, not for a few second.