Kimber 1911 ejecting brass too far forward.

Probably NOT the recoil spring alone. I would suspect the ejector. You, or a competent gunsmith should be able to tune that pistol to eject to the side or further back.
Possibly needs to slow the slide speed with a flat bottom firing pin stop.

4 questions:
Is this a government sized (5”) model?
what kind of loads are you shooting?
and, are you using “factory” springs (recoil & hammer/mainspring)?
Do you know the above spring weights?

Folks with more expertise will chime in to help you I’m sure!

Look in here - https://www.thehighroad.org/index.php?threads/1911-clinic-troubleshooting.58497/
Not exactly your problem but the opposite end of the ejection spectrum with some tuning hints.

Are the cases making contact with the ejection port? If they aren't bouncing forward, then it sounds like the ejector is hitting them a bit too early which is an easy thing to correct with some judicial filing. About a 10 degree back angle on the ejector with a bit of angle toward the port should get them throwing at 3-4:00 or thereabouts once you get things tuned properly. Being as the ejector is inexpensive and easy to replace, offering the suggestion that you start filing on it isn't that risky and you 'should' be able to make the empties go where you want them to.

Wouldn't hurt to make sure the extractor tension is set properly too as this plays a part in where the empties go, but if the gun is reliable I'd be cautious messing around too much with the extractor. How the case leaves the hook is one variable in ejection but I think the ejector would be the first place to look...assuming the gun is reliable.

Recoils spring too light or worn out. Shock buffer. Extractor loosing control of the case.

My 10mm was doing that and an ejector change and profiling now sends them in the preferred direction.

Self study = Range Time!

it seems like an ejector issue. easy fix for gunsmith.

Cases are being tossed forward. You might incorrectly call it ejection and jump to the conclusion that there is a problem with the ejector. In order for cases to go forward instead of sideways, they must be knocked forward by the closing breech. The cases are NOT being held in place by the extractor as they should be, and thus the cases never strike the ejector. The loose case remains inside the gun even after the slide is fully rearward. The slide's forward motion tosses the loose case out. The next step is to determine why the extractor is not holding onto the fired cases. The usual theories apply.