PSX game rumble weak and strong nearly same

[mhmetalheart]

BlueRetro firmware version

v24.04_hw1

BlueRetro firmware specification

HW1

BlueRetro firmware variant

System specific

BlueRetro hardware type

Internal install DIY

Manufacturer

DIY

System used

Sony PlayStation 2

Bluetooth controller brand & name

sony PS3 PS4 & 8 bitdo SN30 pro

What is problem? (only list ONE problem per report)

Game: MGS1 (japan ver. But actually, I don't think that's the game version issue.). In option, can test the rumble. If use the original PSX controller, can clearly feel the weak & strong different.
But on BR with PS3, PS4 or SN30 pro, nearly same. I move left right (change weak <> strong) very fast, I can feel they're nearly no any difference.
Also, on the Ape Escape (also japan ver. named: saru get you!). If slip by the banana skin, can feel a very weak rumble by original PSX controller. But useing BR, the rumble nearly same with 'catch you'.

What did you expect to happen?

make the rumble have clearly different.

Attach files like logs or Bluetooth traces here

No response