Latest PC version update bug, FRAMEDROPS

After the latest update on the pc version, I get tons and tons of framedrops for no reason.
This has never happened before as I’ve had the game since it’s release.
I have Geforce GTX960 and 8gb ram ddr3. And I’ve runned it on medium quality.
I’ve restarted the game and my pc several times and it still get framedrops.
It’s so annoying and get’s really frustrating and I’m angry, tired and dissapointed in this s***.
I adjusted the quality down to low and restarted the game, but it still gives framedrops.
So what in the actual F*** can I do? OR what can YOU GUYS at the Forza HQ do?!
It’s like every time there’s a new update to the pc version, a new problem is born… ffs

Please help!