Honda Civic SI 2008 Starting issues

So I started having this issue quite a while back where when I try to start my car, the lights in the instruments panel go dead and start flickering real fast and holding the key to the start position does start the engine after about 5 seconds but shuts off due to it not recognizing the key fobs security chip, the Car does start after a few tries.
So after seeing this my first assumption was the battery, But this battery was 2 years old, so I didn’t change that part I changed the Alternator instead.

After Changing the Alternator, The problem persisted with the same exact issue. So I told myself that the issue had to be the starter motor. I did realize that when the motor was being started that it was getting slower each time and I haven’t changed that part ever in my vehicle, so it was time to change it anyways but now I am out of options.

What could be the issue?

I have not changed the relay but I assumed it was good because I can hear a really fast ticking sound when trying to start the vehicle.