I' ve noticed that the first time I run the game after computer start, all seems to be fine. Closing the game and launching it again, I get vey low loading speed, and the game runs under continuous micro-stuttering on video and audio. The "black canopy" I posted before is actually a result of large amount of time for charging textures, also instruments and panels are affected.
A simple indication to notice this before flying is launching the Mission Editor, then wait for the background map to load. As said before, the first time I run DCSW after starting the computer, the map starts to load quickly just after few initial seconds. The subsequent times I start the game, it takes a lot of more time to do this. For the same reasons, the first time after starting computer, I can play perfectly without stuttering on image, but for the rest I even get eventually a crash.
Before posting this message I've reinstalled the game and tried to fix with all the methods suggested on others threads, without success. Finally I reinstalled Windows from the beggining, and the only improvement I've noticed is that what I say here: only runs ok the first time after starting or rebooting computer. I attach my last crash log.
Thanks for the help.
Antonio. dcs.log-20180331-141210.zip