chore: Address confusing code comment

Author: lqiu96

java-datastore/google-cloud-datastore/src/main/java/com/google/cloud/datastore/DatastoreOptions.java

@@ -54,9 +54,13 @@ public class DatastoreOptions extends ServiceOptions<Datastore, DatastoreOptions
   public static final String PROJECT_ID_ENV_VAR = "DATASTORE_PROJECT_ID";
   public static final String LOCAL_HOST_ENV_VAR = "DATASTORE_EMULATOR_HOST";
 
-  // Default to a slightly larger channel count to handle a larger initial QPS (up to ~500 QPS as
-  // each channel can handle 100 max streams). This default remains a bit conservative and will
-  // rely on the ChannelPool to resize according to the client's average load.
+  // Default to a slightly larger channel count to handle a larger initial QPS. The initial
+  // configuration
+  // should be able to handle a max of ~500 QPS as each gRPC channel can handle 100 max streams
+  // (limited
+  // by Google Middleware). This default relies on the ChannelPool to resize according to the
+  // client's
+  // average load.
   public static final int INIT_CHANNEL_COUNT = 5;
   // Default to be larger than Gax's default (2) to better scale with spikes in requests
   static final int CHANNEL_POOL_DEFAULT_RESIZE_DELTA = 5;