What part about the barrel fit are you referring to the most? There is not movement once locked up but im sure it could benefit from a hand fitted bushing. I notice the lugs of the barrel appear to have more wear on one side more then the other. I have not shot it yet though so this is only from racking the slide.Congratulations! Soft spot in my heart for mine. Its served me well as my BE pistol so far and all I've done is a trigger job and a bushing.
A trigger job and barrel bushing will go a long way, but I would check the barrel fit using the guidance from Dave Sams below.
If its not right, SA customer service will correct it. Better to have it properly fit before installing a match bushing if that is in your plans.