Damage. Am I missing something?

So I’m building a Boltcaster Greatsword build.

Got lightning harnessing on 4 pieces of armour.

I’m running Boltcaster and a decent 700gs goldcursed GS with, trenchant strikes, keenly empowered and leeching crosscut.

I also stuck a Topaz in my GS

Now when I’m hitting a target with Boltcaster damage numbers popping up saying like =23 and then 3-4k as well But with my GS I’m getting =3-4k and 3-4k both in orange.

Does this mean my bow is only hitting fit around 4k but my GS for 6-8k?

I’m at 150stregth, 350dex and rest in con.

Am I missing something?