30HZ turbo fire bugged?

[psymage]

Expected Behavior

So I'm playing a shmup with a safe spot during a boss fight that requires the player to be in the top middle of the screen holding down 30HZ autofire for a little while in order to chew through the final phase of the fight. I have Turbo enabled, set to 30HZ, and mapped to one button. 30HZ should just be a constant stream of bullets near the top of the screen.

Current Behavior

It seems like the 30HZ goes down to a much slower rate after several seconds and sometimes, it seems to happen sooner. This much slower rate will occur for two to three seconds before resuming with 30HZ. This is in a section of the game where there isn't any frame rate problems either that could cause frames to get dropped. This is a little bit annoying and it doesn't appear in other footage of the game that I could find.

I even tried 29HZ and while it is slightly slower rate obviously, it does not have this issue as the rate of fire stays consistent even when holding it for several seconds at the top of the screen in the same area of the game. I wonder if the 30HZ setting is sometimes trying to do more than 30 presses per second for some reason, but that's my only theory and that could be wrong.

I'm brand new to the GP2040CE firmware as I've only been playing on a fightstick with the RP2040 Advanced Breakout Board for about a month. I got the board off of FocusAttack.

Firmware:

RP2040 Advanced Breakout Board - USB Passthrough (GP2040-CE_0.7.10_RP2040AdvancedBreakoutBoardUSBPassthrough.uf2)
Current: v0.7.10-2-g230983f
Latest: v0.7.10