Does my sound effects lack bass or have excessive treble?

When I create sound effects I use headphones but when I listen to my speakers, there is excessive treble.

Sorry for the dumb question I’m still a newbie.

Here are my sound effects:

there are hundreds of them here not uploaded yet because I feel they have excessive treble. I just need a software that can balance them all in one click instead of editing them 1 by 1.I was gonna use them for rts game but it is canceled