Bumping this topic with my today experiments
I know Albo, I'm bothering you everywhere
I had a GTX970, I now have a beasty GTX 1070. In all games I tried, I am now able to putt all settings to ultra and have FPS increased a lot.
Proof : I'm able to run all Ubisoft Games in Ultra at solid 60fps, that is sorcery !
Now, about GTAV : I was in the city on a road with a lot of traffic, but the same kind of FPS loss is visible anywhere. Of course, the problem is less noticeable when there is less traffic.
GTAV without any RPH plugins : +-90 FPS
LSPDFR loaded without any plugins : +-90 FPS
LSPDFR + some callout plugins : +-80 FPS
LSPDFR + Albo's plugins : +-50-60 FPS
Maybe the ambiant events ? Some other callouts plugins have ambiants too, but are not making all that FPS loss so I don't know.