I've just read another Luthier's post on Sukhoi forums and yes, this is indeed very serious.
Luthier stated that this epilepsy issue has forced them to completely irreversibly screw the representation of propellers- ruining their spin rate and transparency. This is already implemented and is not reversible.
Then we read here that they will have to now go through the rest of the game "fixing" things one-by-one. (Just like propellers
)
THe current "overall fix" does not only concern SLI- it also causes freezes/fps drops for single card users when flying low for example.
Beta testers and people who played CoD at Russian gameshows say that even then the game was less jerky and better optimised . Epilepsy (as it stands now) has indeed impacted the game for ALL users. I thought it was a joke, but its pretty grave.
Source(Russian):
http://www.sukhoi.ru/forum/showthrea...=1#post1571060