Added to what Vesuvius posted if your PO is too much high:
- Don't use HD textures (4096X4096) (21,6Mo) but use 2048x2048 (5,31Mo) or even 1024x1024
- You have to use lower lods. Your wad will be bigger but it will decrease your PO in game. So don't force the game to use the lod_0 only.
- Check your graphic card settings (don't use quality settings if you are using a Nvidia graphic card).
- Don't use the f1grapghic file settings but prefer to set the graphics manually into the menu of the game. So, edit this line into your f1graphic file like this:
0 ; f1graphics.cfg controls all settings (default 0)
- Also, reduce the size of the tyres textures, if you need it.
Check if it is better, also regarding Vesuvius post above...
____________________________________________________________________________________________________________________________________________