Audio export reverb

Hi. I've been working on a bunch of stuff, mostly drum lines, and when I decide to export it as an audio file from musescore, I get a lot of reverb coming from all the sounds, mostly the hand clap, hi-hat, and cabasa sounds although the other ones give off some as well. I am using a custom soundfont, which I will include for download to use for reference, as well as one score I'm working on. Anyway, I need to know if this is user error, or something that's wrong with the software, or if it's the soundfont itself. Thanks