You’ll likely start to see issues (if they’ll appear) when you “max” out your strip.
Try upping the power in config to more than your supply can provide, say 9000ma.
Then create a full white max brightness preset and watch for dropping of colour and/or brightness near the ends.
If you’re happy with brightness levels with your PS as is, just leave it alone.
Personally I prefer my PS’s to be more capable than the strip could require.