Swift File hogging CPU

We recently upgraded from Louts Notes 7 to 8.5.1. Everythings been great but i’ve been having problems with Swift file on just one laptop.

Swift file works fine for a little while and then the user notices that their machine is running really slow and on investigation i find that Swiftsrv.exe is using almost 100% of the CPU.

Any ideas why this is? Any solutions?

All help greatly appreciated.

Regards Tania