Slowdown in TTYD during paper effects

[BgoodGaming]

Does anyone know how to fix this? I'm running build 5.0-14762 on GPD Win 3 and the game seems to slow down during some (not all) paper effects (i.e. Flurrie blowing away decoy objects/walls) and this happens at random and when reloading save states, it's always the same random occurances (like in chapter 4 when blowing away the fake trees/rocks in Twilight Trail). I have no idea how to fix this. I've been told that the bounding box feature needs to be enabled and it is. So what's causing this problem? Is there something that needs to be set to "True" or "False" in the game's INI settings? I just wish I knew what was causing the slowdown.