There are different reports on this. But they are rare (compared to the user base), and I would suspect more a problem with a local configuration than an Adobe issue.
Check if the problem is also present, when you change the computer or the network. A high number of assets in the library could also cause problems. Some time ago, access to the libraries was slow, when you had more than 100 elements in the library.
ABAMBO | Hard- and Software Engineer | Photographer