In 4.2.1 patch, in-game maps got nearly constant 60 FPS.
But now in 4.3.0 the FPS drops significantly to around 35-40.
CPU : Intel core i7 9750H
Graphic card : NVIDIA Geforce GTX 1660Ti-maxQ
RAM : 12GB
What settings and resolution are you using?
Here. I didn't change any settings after patch the game.
Your resolution is set to 18% with a GTX 1660... and its dropping frames?! I am very confused. Are you playing on like a 16k monitor? XD I'm honestly wondering if the resolution upscaling is performing poorly for some odd reason. 18% should be a breeze to run on your GPU, but the game should also look very potato-like.
What resolution is your monitor? If it's 1080p, you should be able to set the resolution slider to 100% and have the game look a lot better without having frame drops. I raised my FPS cap to 75 to match my monitor, I run on medium at 1080p, and I still only rarely drop below 75 FPS. I have a GTX 1060, which should be weaker than your GPU, so you should easily be able to handle 1080p / Low / 60 FPS.
What's wrong with the drive utilization in the main menu? the system process drive utilization is also caused by DbD, this was not the case before the patch!
Graphic quality on low!
CPU: AMD Ryzen 7 3700X
RAM: 32GB Corsair DDR4-3200 CL16 Dual Kit
GPU: MSI GeForce GTX 1070 Quick Silver 8G OC
on Win 10 2004 with newest Driver
The monitor resolution is 1920*1080 and 125% zoomed (default)
I tried set to medium 100% like you. It's nothing wrong in the main menu, I got the lowest 100 FPS.
But in-match maps, with the same settings I got 35 FPS.
That's really weird. On 1080p / Medium / 75 FPS cap I only drop below 75 in certain situations, like pretty much playing against Doctor lol, and even then I'm still over 60. Thanks for providing your settings - hopefully that gives folks who know more than me something to work with. This definitely sounds like a bad issue though; you definitely shouldn't be dropping to 35 FPS on those settings with those specs.
This game does that and has for a while. I'm not exactly sure why, but it's a [thing].