[taskswitcher] Task switcher fps is very low when opening, and noticeably slower to load previews
Even on the PinePhone Pro, the task switcher is now noticeably slower to load previews (the preview almost always shows nothing for at least a second, before switching to preview, whereas before it was usually instant).
The fps when opening the task switcher by pressing the multitasking button is also definitely in the single digits.
Not sure if it was due to !237 (merged)