what could explain this low FPS?

[lwalter]

I'm using latest beta.

2 weeks ago, I was flying helicopters around Normandy map, including towns and fps were good, fluctuating between 55 and 60 fps (I'm using vsync).

Today, I was doing several take offs from Bodney base in UK, in campaign Blue Nosed Bastards of Bodney, with P51D and everything was fine too. 

However, when I tried instant action "Take Off" on Normandy map with P51D. The fps were doing yo-yo between less than 30 fps to 60 fps and overall, it wasn't smooth at all. The only difference to the previous flights I noticed was a kind of low fog layer over the fields. Could it be coming from the new cloud system introduced by ED or is it specific to this map?

 

[lwalter]

Can anybody try this instant action "Take Off" on Normandy map with P51D? I'd like to know if I'm the only one who notices a big difference in fps between about anywhere over Normandy and this specific instant action setting.

[lwalter]

Does nobody have both Channel map and P51D? I'd really like to know if the fps from issue is coming from my setup or from DCS itself.

[Art-J]

Last time I had such a 30-60 issue was when 2.7 was first released and I had in-game V-sync on. Had to switch to nvidia one instead. Maybe yours got somehow reset during one of later updates?

 

Don't own the Channel map, but tried the P-51 Instant takeoff on Normandy as you asked and on my PC it stays usually at 60, dropping to 50-few when shadows and fog tax my GPU too much during landing approach. Using Barthek's texture mod for Normandy and Mustang's shader tweaks, but these shouldn't affect performance all that much.

[lwalter]

Thanks Art-J

I have in-game v-sync on. I'll check about the activating v-sync in Nvidia control instead.