Experiencing Input Delay

[TehNumadon]

I recently came back to Warframe after having been gone for about a year, and everything is different. When I left off from playing, my game ran smoothly on low-medium setting and I had no delay. But when I came back, every mission I'm on I experience delay in my keys. When I press forward sometimes my character doesn't move for a couple of seconds or they keep moving for WAY after I stop pressing any buttons. I've tried turning down all my settings and going into windowed mode, but nothing is working. Does anyone know how to help?

[Gale47]

Not a clue mate. Warframe is running much better for me than it did, say, a year ago.