I hate to say "it works fine for me" because that's unhelpful, but I have no idea what the problem could be. I haven't seen anyone else with this issue.
I... found out what was causing the FPS dips. It was the fact that it was on my external HDD. I moved it to my NVME drive, so it runs like any other RPGMaker game. Which is weird, because all of my RPGMaker games are on that HDD, which run smoothly.
