Multiple Key Presses At Once Not Registering

So, just out of the blue, out of nowhere, this problem started to occur. This only happens in minecraft too, I try and press space bar to jump, X to sprint, and w to move forward, and when I try to do this, only 1-2 of my key presses will register, for example sometimes I will start moving forward and be jumping, but my key press on X will not register and I wont sprint. I varies randomly, I sometimes will be moving forward and sprinting, but despite holding the spacebar, I wont be jumping. What would also happen is I would hit a key, say space, and it would not register the first key press, but if I pressed it again almost immediately, it would work.

I am using a Razer Blackwidow Chroma, and I already tried uninstalled razer synapse and reinstalling it. Did not work. I tried on another keyboard, and ran into the same issue, so this ruled out it being the keyboard's fault. I've uninstalled Minecraft completely, and reinstalled it, no luck, I uninstalled and reinstalled java, no luck. The weird thing is that this only happens in Minecraft. For example if I go into a text document, I can spam all the buttons I want, including space, and they all register. I'm thinking about reinstalling windows. I don't <<edited>> understand why out of the blue, my key presses are not registering/being insanely unresponsive.

I was also experiencing input lag at times, I would hit a button, and there would be about a half a second delay before it registered in game. Again, this only happens in minecraft. I just played CS:Go for about 45 minutes and did not experience any problems.