How to handle degraded performance and crashes?

Over the past day or two, i’ve noticed what seems like very sluggish performance. Thought it might be my context window, so I started a new Composer session, but it didnt get better. I’ve restarted the interface multiple times, but it persists. Then this morning, I loaded it up, asked it to fix a compiler error, and the entire UI crashed. Thought it was a fluke, so I reloaded, asked the same question, and it crashed a second time.

Any idea whats going on, or what recommendations you might have to bring it back to what it was? Is there a cache to clear, or something else that might help?

Thanks!
Greg