jmusbdll.dll is a JMUsbDll
belonging to JMicron 2033X JMUsbDll
from JMicron Technology Co.
Non-system processes like jmusbdll.dll originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.