On my AMD Ryzen 7 8845HS mini PC, NVDA is a bit sluggish in some cases in Firefox; e.g. cursoring through messages in Gmail folders. For reasons I don't fully understand, setting the processor affinity to a single CPU core and setting the process priority to "above normal" helps significantly, even when the CPU is nearly idle. I don't currently have the time/energy to debug the root cause for this or write a proper add-on, but I wrote an NVDA global plugin to make the change for me automatically when NVDA starts. If it breaks something, you get to keep all the pieces.
```
import ctypes
import globalPluginHandler
class GlobalPlugin(globalPluginHandler.GlobalPlugin):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
p = ctypes.c_void_p(ctypes.windll.kernel32.GetCurrentProcess())
ctypes.windll.kernel32.SetProcessAffinityMask(p, ctypes.c_void_p(1))
ctypes.windll.kernel32.SetPriorityClass(p, ctypes.wintypes.DWORD(0x00008000))
```
#nvdasr
