Help Reducing Latency?

[Leyf]

Hey everybody.

I'm very new to the audio production/recording scene and am starting to become much more serious with my hobby. I am have a rather difficult timing getting all of my devices to cooperate. I'm experiencing 21-33ms according to Reaper (it says this in the top right corner of Reaper).

Heres my set up:

-Surface Pro 3 laptop
-j5 Create powered USB hub
(the USB hub is plugged into my laptops only USB port)

In the Powered USB hub:
-Scarlet Focusrite 2i4
-KORG USB Mini22key

And finally, plugged into the Scarlet, are 2 studio monitors and one Blue Yeti Pro mic.

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Ultimately I tried a lot of playing around with options, and doing some intense Googling. There is a lot of information out there about latency, but I am overwhelmed and have no direction. I would really appreciate if somebody could help me reduce this lag so I can properly record.

Thank you very much!