Itunes on PC keeps freezing

I've always found Itunes on PC to be somewhat unreliable, but it does appear to be becoming even more unstable.

I've noticed increasingly over the past six months or so that itunes freezes repeatedly. Doing ctrl/alt/delete often shows the processor is working hard (20-30% usage), but it rarely "catches up" and restarts, although it does sometimes. More frequently, a song keeps playing, but itunes becomes unresponsive, and ctrl/alt/delete reveals the processor is running at only 1-2% until the end of the song, when processor usage drops to zero and the app has to restarted. The last played song does not show as having been played.

Occasionally, an Apple Music song become grey and shows as unavailable, although if click on "Show in Apple Music" the song is available. Re-adding the song usually works, but play counts are reset to zero.

In addition, some of the streamed music based on an MP3 file (stored on my mac) show "time" as continuous, and will not stream on the PC. These files show time as normal on the mac, and will play as normal.

My laptop is not the newest or highest spec (i5-7200U, 2.5ghz,8GB Ram), but I would have thought it would be adequate to run itunes efficiently.

Music is entirely streamed on this laptop using Apple Music subscription, so no physical copies are stored locally.

My entire library is nearly 58,000 tunes, about half "owned" (physical copies stored on a MAC) and the rest Apple Music tunes.

The itunes version on PC is 12.13.1.3 and is set to update automatically.

My inkling is that the PC version of itunes is just inherently unstable and local information about my itunes library corrupts when the App freezes.