What version of Pimax Play are you running? Try reverting to 1.37 (link for the installer below) and see if that resolves the issue.
https://dlappstore.pimax.com/release/play/PimaxPlaySetup_Release_toC_V1.37.01.01.05_202501182001.exe
The reason for this is that Pimax Crystal Light offloads it’s tracking entirely to the CPU and Pimax did something to the tracking algorithm from version 1.38 forward which made it very sensitive to CPU latency. This means jittery and/or laggy tracking when the CPU is also running other intensive, multi-threaded CPU processes like MSFS 2024. It didn’t affect MSFS 2020 as it was more single-thread focused while 2024 is more optimised to run across multiple threads and therefore interferes more with the Pimax tracking.
This only affects the standard inside-out tracking version of the Pimax Crystal Light as it has no onboard processing hence why it offloads the tracking to the CPU. If you have the lighthouse tracking faceplate that has some processing built-in and doesn’t offload as much or at all (not 100% sure) to the CPU. The affected versions are 1.38, 1.39 and 1.40 with 1.39 being the worst and 1.40 starting to get better again but still an issue. Pimax has said they’re working on resolving it as a priority.