Have you tried other settings (see the WOTR FAQ for tips, for example you could change the campaign Air Activity to lower or try unchecking "large formations" if it's on. (see "more" button bottom right in Workshop). Disable regional Flights etc, or reduce squad compliments etc. Also try recommended settings in the FAQ for terrain and scenery under graphic settings.
Many other things you can try including changing your GPU settings AA set it to use the game settings or set it to 2 in Workshop and set to override, or enhance and set it low etc.
I also found forcing my sim to run on certain CPUs (rather than all) caused a problem here.
Changing the settings as per your suggestions. I noticed an improvement indeed seems i´m in the right path. I wonder if disabling regional flights will turn down the game immersion and make the action thiner.
