Plus, there's apparently a bug where opening the world map drops you into safe mode... Which for me at least runs far worse than Directx.
Just a note, could you please post off topic chatter about FPS issues in the correct forums such as Rants (or wherever the thread about FPS issues is posted.)
I disagree that it is off topic, since Jagex has been accompanying weekly content updates with continued updates to try and resolve FPS issues, which for many of us isn't working.
I'm starting to think that safe mode is the root of all of the FPS issues.