Microsoft.Identity.Client AcquireTokenOnBehalfOf doesn't get token from cache

Question

I have a problem to figure out how implement cache with AcquireTokenOnBehalfOf. Every time when I call code below for the same user I get different token, so I suppose that there is no inner cache mechanism or something like that.

    var app = ConfidentialClientApplicationBuilder.Create(ClientId)
        .WithClientSecret(ClientSecret)
        .WithAuthority(authority)
        .Build();

    var result = await app.AcquireTokenOnBehalfOf(new[] { "https://graph.microsoft.com/.default" }, userAssertion)
                          .ExecuteAsync()
                          .ConfigureAwait(false);

I tried to add app.AddInMemoryTokenCache(); from Microsoft.Identity.Web and it works but then one request can last even 21 seconds and this is not an option.

Is anyone who faced problem like that?

Edit: I found some solution. I added to ConfidentialClientApplicationBuilder two lines and now it take tokens from cache:

.WithLegacyCacheCompatibility(false)
.WithCacheOptions(CacheOptions.EnableSharedCacheOptions)