Persistent UI thread latency and panel freezing on 7950X3D + RTX 5080 (35k Cinebench score)

Lightroom Classic version: 15.2.1 [ 202603161217-0bf813d9 ]
License: Creative Cloud
Language setting: en
Operating system: Windows 11 - Business Edition
Version: 11.0.26200
Application architecture: x64
System architecture: x64
Logical processor count: 32
Processor speed: 4,1GHz
SqLite Version: 3.36.0
Adobe GSDK Version: 1.4.0.212

CPU Utilisation: 0,0%
Power Source: Plugged In
Built-in memory: 65140,6 MB
Dedicated GPU memory used by Lightroom: 12170,0MB / 15977,0MB (76%)
Real memory available to Lightroom: 65140,6 MB
Real memory used by Lightroom: 8525,5 MB (13,0%)
Virtual memory used by Lightroom: 22830,8 MB
GDI objects count: 953
USER objects count: 3435
Process handles count: 3877
Memory cache size: 16644,9MB
Internal Camera Raw version: 18.2.2 [ 2512 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 3685MB / 32570MB (11%)
Camera Raw real memory: 4388MB / 65140MB (6%)

Cache1: 
Final1- RAM:1189,0MB, VRAM:7790,0MB, A7408355.ARW
Final2- RAM:292,0MB, VRAM:0,0MB, A7408450.ARW
NT- RAM:1481,0MB, VRAM:7790,0MB, Combined:9271,0MB

Cache2: 
m:16644,9MB, n:541,2MB

U-main: 118,0MB

System DPI setting: 96 DPI
Desktop composition enabled: Yes
Standard Preview Size: 3380 pixels
Displays: 1) 3440x1440, 2) 2560x1600, 3) 1080x1920
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info: 
DirectX: NVIDIA GeForce RTX 5080 (32.0.15.9579)
Init State: GPU for Export supported by default
User Preference: GPU for Export enabled
Enable HDR in Library: OFF
GPU for Preview Generation: On (S5_15)

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
Library Path: C:\Users\user\Pictures\Lightroom\Lightroom Catalog.lrcat
Settings Folder: C:\Users\user\AppData\Roaming\Adobe\Lightroom

Installed Plugins: 
1) AdobeStock
2) Flickr
3) Topaz Photo AI

Config.lua flags: 

Adapter #1: Vendor : 10de
    Device : 2c02
    Subsystem : 176219da
    Revision : a1
    Video Memory : 15977
Adapter #2: Vendor : 1414
    Device : 8c
    Subsystem : 0
    Revision : 0
    Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: System Default - Speakers (Realtek(R) Audio)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: LR5x34
Direct2DEnabled: false
GL_ACCUM_ALPHA_BITS: 16
GL_ACCUM_BLUE_BITS: 16
GL_ACCUM_GREEN_BITS: 16
GL_ACCUM_RED_BITS: 16
GL_ALPHA_BITS: 0
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 24
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_SIZE: 32768
GL_MAX_TEXTURE_UNITS: 4
GL_MAX_VIEWPORT_DIMS: 32768,32768
GL_RED_BITS: 8
GL_RENDERER: NVIDIA GeForce RTX 5080/PCIe/SSE2
GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA
GL_STENCIL_BITS: 8
GL_VENDOR: NVIDIA Corporation
GL_VERSION: 4.6.0 NVIDIA 595.79
GPUDeviceEnabled: false
OGLEnabled: true
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