Hi. Thanks to all.
Finally I only change with the stock parameters indicated by THEBERBSTER whitout any mod and all is good.
Another question is that I cannot see the icon sub in Map Nav when I take max. zoom. I can see the rest of ships but not my sub.
In options I only tick on in limited batteries, limited compressed air and limited O2. The rest of parameters is off. I use TWoS with only one mod additional (Brighter nights). I not installed Real Navigation at the moment. I would like to know why. Thanks again.