p11ui.dll is a JWRASUI
belonging to JWING Raster
from OLYMPUS IMAGING CORP. & SOFTWAREIMAGING K.K.
Non-system processes like p11ui.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.