My system: Notebook Intel i7 2720QM 2.2MHz; Nvidia gtx460M; 12GB RAM; SSD.
Arch Linux KDE

project (by IgorBeg): WathTimeIsIt.xml

Playback driver:    video:      Cut:        Transition:     Zoom:    Title: 

X11-OpenGL          9.5-9.7     9.2-9.5     7.5             6        12 fps

X11 Direct          9.8-10      9.8         8               6        6  fps

No Color3Way        25          23          14              10       13 fps


NOTE:

1- Using or not using "Play every frame" only changes by 1 - 3 fps.
2- When you use the zoom you have a fall of fps.
3- Switching between edits only loses fractions of fps.
4- Transitions make you lose 1 - 2 fps.
5- Heavy plugins like Color 3 Way cause the fall of fps.


Project render (without Color 3 Way):

1) ffmpeg mp4 (preset audio/video: h264.mp4) --> 2'41" (11.106 fps) 29MB
    
    Loading the render in CinGG --> 2.5 sec; playback --> 30 fps. Hard Cut + Transition --> 30 sec
    
    
    
2) ffmpeg pro (preset: acc256k.pro; med422p10.pro) --> 2'14" (13.367 fps) 975MB
    
    Loading the render in CinGG --> 3 sec; playback --> 30 fps. Hard Cut + Transition --> 30 sec
    
    
    
3) ffmpeg mkv (preset: flac.mkv; ffv1.mkv) --> 2'16" (13.162 fps) 926MB
    
    Loading the render in CinGG --> 9 sec; playback --> 30 fps. Hard Cut + Transition --> 30 sec