RetroPie FBA sound issues with Ketsui and Espgaluda?

I've been tinkering with a RetroPie project and have been trying use FinalBurn Alpha to work with all the shmups I can. I've noticed that while Ketsui and Espgaluda's gameplay is fine...the sound on them seems to lag/stutter at times or generally just not play correctly compared to playing them on a MAME PC. Anyone happen to have this problem and know how to fix it? I thought PGM-era stuff worked fine in FBA.

(Probably going to try out Recalbox to see if I like the general set-up/system better than RetroPie's.)

PGM emulation is one of the few 2D arcade platforms that the rasperry pi struggles a bit with. Things like Oriental Legend and Knights of Valour 1/2 have noticeable lag, stuttering, and the sound issues.

If you're unaware, Ketsui and Espgaluda are both PGM based titles.