Performance bottlenecks in certain areas?

[krittinen]

Validation

• [x] I have checked the Issues page to see if my problem has already been reported
• [x] I have confirmed that this bug does not occur in the original game running on original Xbox 360 hardware

If you have DLC installed, please specify which ones you have.

• [x] Apotos & Shamar Adventure Pack
• [x] Chun-nan Adventure Pack
• [x] Empire City & Adabat Adventure Pack
• [x] Holoska Adventure Pack
• [x] Mazuri Adventure Pack
• [x] Spagonia Adventure Pack

If you have mods enabled, please specify which ones you have.

If you have codes enabled, please specify which ones you have.

Press A to Homing Attack

Describe the Bug

Performance around Chun-nam seems limited despite my Steam Deck's GPU and CPU not being fully utilized.

Steps to Reproduce

Steps to reproduce the bug:

1. Go to Chun-nan on Steam Deck
2. Stand facing the water towards the waterfall.
3. Performance drops severely despite GPU and CPU not being fully utilized and max TDP not being reached

Expected Behavior

The game fully maxes out the GPU or CPU usage if needed.

Footage

Specifications

Fill out the following details:

• System: Steam Deck LCD
• OS: SteamOS 3.6.21
• Version: 1.0.0 Flatpak

Additional Context:

Resolution: 1280x800 Scale: 100% Anti-Aliasing: 4xMSAA Transparency Antialiasing: Enabled Shadow Resolution: 2048 GI Texture Filtering: Bicubic Motion Blur: Enhanced

GPU clock is fixed at 1600MHz.