FSR 2 with 0.87 scaling. It gives a resolution close to 3000x1260. That's a resolution between 3440x1440 and 2560x1080. My system cannot quite run well with the native resolution of my display (3440x1440), and 2560x1080 seems too blurry. ~3000x1260 hits the sweet spot between good FPS and not being too blurry.
Currently I'm running image sharpening 0.9, but even that doesn't seem quite enough... Maybe it's because of the slight ghosting. Yeah, there's definitely some ghosting. I don't notice it otherwise but when looking at the gauges and displays.