Can you post your DXDiag?
Start -> type: DXDiag -> Save Information www.pastebin.com
More detailed description = http://answers.ea.com/t5/Titanfall/PC-Graphic-performance-issues-in-Titanfall-here-s-how-to-help-us/m-p/2454360#U2454360
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First thought: Possibly you have a laptop that has switchable graphics and for some reason it wants to use the Integrated Graphics that have outdated drivers. I've seen Optimus (nVidia switchable graphics) laptops, if you update the Intel drivers it causes Optimus to flip out and not work right... so it isn't a bad thing if your Intel drivers are out dated I suppose.
Check your nVidia Control Panel 3D Preferences or AMD Catalyst Switchable Graphics if you have a system like that.
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Second Thought: Possibly something changed in the update and your old config files are no longer valid.
You could try RENAMING the Sims4 folder inside :
C:\Users\<USER>\Documents\EA Games\Sims 4
We want to rename it because you may have save files and stuff in there you still want. Renaming is a safe way to test because we can always rename it back OR copy the saves/mods/whatever into the new folder it creates