DRS 20 beta 4 - Compounding performance loss on re-open

Issue: Starting then re-opening DRS 20b3 reduces timeline frame rate, and introduces audio offset / distortion. Consecutive reopen will continually lower timeline frame rate after 5 restarts timeline was playing at 17fps.

To reproduce

Restart computer
Open a 4k 30fps timeline using GoPro 4:2:0 4k@120fps footage
Apply LUT to footage
Apply Edge Sharpen to timeline
Apply Dehaze to timeline
Disable proxies
Disable render cache
Delete render cache
Play timeline in edit tab, observe 30fps stable frame rate
Close Davinci Resolve
Re-open Davinci Resolve
Open same project
Play time line in edit tab, observe ~25fps frame rate

Issue does not happen in Davinci Resolve Studio 19.1.4

System
Software: Davinci Resolve Studio 20.0 Beta 3
Linux: Ubuntu 24.04 (official rocm 6.4.0 using official amdgpu-dkms), CachyOS (rocm 6.4.0)
CPU: AMD 9950X
RAM: 96G DDR5 6000
GPU: AMD Radeon RX 9070 XT @ PCIE5 16X
Disk: Kingston KC3000 4TB SSD
Motherboard: ASUS X870E ProArt

Still happens in Beta4