There are no spyware/virus' on my laptop, checked everything to make sure. When you try and move the cursor, right hand side of iTunes, with the track pad it sticks then jumps then sticks again. Can take several minutes to move from top to bottom especially as i've over 1000 albums on iTunes.The cursor seems to be the same speed as before to me. What are you doing to see the stutter in the cursor?
Have you checked your system for malware that is using your computer's power for some other purpose (bitcoin mining, ads, etc.)
Hi cjmnews,The library size you imply is huge and iTunes does not handle it well.
You should turn off the iTunes XML file.
Uncheck Share iTunes Library XML with other applications
See if that helps.