[PC] Dragon Age Inquisition: Sudden bad performance, fps drops/lag

UPDATE 1: I'm currently testing if completely clearing the Origin cache and deleting my save games will help any. Don't worry, I backed the saves up. Will update if this provides a fix.

UPDATE 2: No fix, so it's likely not an issue with the cache or my saves. In starting a new game I noticed bad lag/poor syncing of model movement and speaking animations. Some cinematics extended past their sounds because model animations were lagging so badly...

UPDATE 3: As per /u/deylath on reddit, I turned off Origin gamepanel/Origin in-game. I noticed better animation syncing, but that seems to be all that was changed. The first tutorial battle (I'm testing with my old saves wiped still) still experiences incredible lag, maybe about a half-speed fps drop to what I could run before (previously to this issue, battles ran smoothly, no lag). And the following cinematic finds itself completely out of sync with the sound again with fps drop still happening. Partial fix?

UPDATE 5: This seems to have made the game worse. In starting a new test game, after the very first opening cinematic where you escape the fade, the character model and Cassandra dropped into a map I've never seen before, looks like somewhere with the ledge you climb in the opening cinematic in the background. My character has maybe 10% health, no weapons, and no skills, taking damage. I think I'm going to update the drivers again...

FINAL UPDATE: I'm not getting any help here so I'm going to discontinue my search on this forum. If you have interest in helping me, please see my reddit post on the matter.

@plumularvae This post has only just become visible here in the DAI forum, which means you didn't post it in the right subforum originally and someone just moved it here.

Did you manage to fix it in the meantime?

Looking at the reddit thread, it looks like he fixed it, possibly by doing a dust cleanout of his computer. 

I seem to have run into the same problems as plumularvae here but unfortunately a good dust off my computer didn't help me. I tried un-installing and re-installing and using the repair option but had no luck at all: DXDIAG information file:///C:/Users/Brain%20Eater13/Desktop/DxDiag.txt Could you please help me?

@BrainEater0 That dxdiag file link you provided is for a location on your computer (internet links generally have a http:// while computer links have a drive, such as C:/ 😉 ). You can attach the text file to your post using the 'Choose File' button under the text box (and selecting the dxdiag text file) if you don't want to use hastebin.

Other information which could be useful to include is other things you have tried to fix the problem, whether you're using any mods, any differences between your problems and those of the OP (or just a description of your problem, if that's easier).

Things that i did to tried to fix my crappy performance: 

1. Uninstall the game and than reinstall 
2. Used the repair option 
3. disable Origin in game 
4. clean my PC, because i might as well try everything at this point...

Every time i load the game it takes an additional 25 seconds more than usual, the frame rate immediately goes to hell once the game starts, the gameplay is slow and choppy.  No, i am not using any mods.