Bioshock Infinite Poor Performance

Hi guys, I'm currently using my Lenovo Y510P 750M SLI to play Bioshock Infinite at 1080P. I've found that the smoothest gameplay is by setting the quality to "High" with vsync turned on. However when I look on the benchmarks at notebookcheck, they were getting avgs of 38FPS on ULTRA settings. I have several questions:

1) If I set the quality to ultra with vsync on, I getting avg fps in the low 20s. I'm assuming that these benchmarks were done with Vsync turned off and that's why they were able to get so high of FPS? Please note the settings are: low/medium/high/very high/ultra..

2) I'm noticing even when I set it to high settings, I get a constant 40FPS. However, in certain scenes, it falls down to even mid 20s. I am wondering why this is so. I'm using MSI afterburner and i'm noticing both GPUS never cross 73 C, which means it isn't due to throttling. Furthermore, the GPU usage never crossed 70-80%, which means the GPU wasn't even being maxed out.

If anyone can help me out, that would be greatly appreciated. Thanks!

 

Turn off V-Sync.

 

I've tried it and the FPS were higher but I'm very hesitant to do it. There was noticeable tearing/blurring whenever I walk around with V-Sync turned off. I'm not sure how anyone can really play the game with V-Sync turned off ?

 

Are you using the latest graphics driver?

You can turn off V-Sync and use an FPS limiter such as RTSS or Nvidia Inspector to limit the game to 60 FPS. It should cut down on some of the tearing.

I never, ever play games with V-Sync on. V-Sync is generally bad. It creates a ton of input lag and cuts FPS in half like you've already experienced.

If you must have V-Sync, you could try Adaptive V-Sync in the Nvidia Control Panel or triple-buffered V-Sync forced with D3DOverrider. These will mitigate the FPS drops.