Accumulating frames can sometimes multiply light. Look for an "Exposure" or "Gain" slider inside the long exposure shader settings and turn it down until the brightness matches the original game.
Turn the accumulation rate up. A higher value means frames stay on screen longer, creating a smoother blur. reshade long exposure
If you are using a shader like Realtime Long Exposure , press your designated hotkey to start capturing. Let the game run naturally for 5 to 10 seconds. You will watch the water turn to glass and moving characters stretch into silhouettes. Step 4: Freeze and Capture Accumulating frames can sometimes multiply light