OBS Settings Recommendation?

[Profile Name™]

Re: OBS Settings for Twitch.

I used the following OSB settings my first time:

30 FPS, 3500 Bitrate, Keyframe Interval 0, Output tab: Rescale Output 1366x768, Video tab: Base Resolution 1366x768, Video tab: Output Resolution 1364x768

I noticed a little lag while I was playing the game. Enough where my movements were a tiny bit choppy, so if that can be eliminated that would be great. And the stored broadcast video was extremely laggy. It was no fun to watch. I want there to be no lag while I am playing the game and no lag in the stored broadcast video that people watch.

Intel Core i5-4200U 1.6 GHz (3 MB Cache)
8 GB DDR3L SDRAM
500 GB 5400 rpm Hard Drive
NVIDIA GeForce GT 820M

Download Speed is 90'ish Mbps. It's supposed to be way lower than that but I have been complaining to my internet company a lot so maybe they increased it on purpose in hopes that it will make everything better. Upload Speed is around 8-9 Mbps.

My idea is to make the Keyframe Interval 2, go to the Output tab and uncheck the box next to 'Rescale Output', and then go to the Video tab and lower the Base and Output Resolutions. Or maybe just the Output one. And finally, I don't know what FPS is good, but I want the video to look less laggy so I am thinking that I should increase it to 60 FPS. Oh, and I might change the Downsacle Filter from Bicubic to Bilinear. And also thinking about changing the Output tab CPU Usage Preset from Very Fast to Super Fast.

What are your suggestions for the Settings? I am new to this and I am sure some of you are experts on streaming and can do more than just copy and paste some OBS and Twitch Settings website links.

EDIT: There is also some weird behavior in my stored broadcast video where it replays the same parts over and over like 2-10 times before continuing. Wtf? And why is the Twitch website so damn laggy. Everything that I try to do on it is laggyyyyyyyy.

[Profile Name™]

I played around with some of the settings and there has been a drastic improvement. I think that I am happy now.

30 FPS, 3000 Bitrate, Keyframe Interval 2, Output tab: Rescale Output unchecked, Video tab: Base Resolution 1366x768, Video tab: Output Resolution 1024x576, Downscale Filter Bilinear, CPU Usage Preset Ultra Fast, Profile Main.

Now there is no more lag in the game or the video, but I might want to bump some of the settings up to make it look more HD.

EDIT: There is still the same problem where parts of the stored broadcast video will replay 2-3 times before continuing, but it isn't as bad. I guess I might try to reduce the Output Resolution some more and maybe drop the Bitrate to 2500 and see if that helps.