Add TODO comments for performance optimization.

Author: vbabanin

driver-core/src/main/com/mongodb/internal/connection/OperationContext.java

@@ -285,21 +285,26 @@ private DeprioritizingSelector(final ServerSelector wrappedSelector) {
             public List<ServerDescription> select(final ClusterDescription clusterDescription) {
                 List<ServerDescription> serverDescriptions = clusterDescription.getServerDescriptions();
 
+                // TODO-JAVA-5908: Evaluate whether the early-return optimization a meaningful performance impact on server selection.
                 if (serverDescriptions.size() == 1 || deprioritized.isEmpty()) {
                     return wrappedSelector.select(clusterDescription);
                 }
 
+                // TODO-JAVA-5908: Evaluate whether using a loop instead of Stream a meaningful performance impact on server selection.
                 List<ServerDescription> nonDeprioritizedServerDescriptions = serverDescriptions
                         .stream()
                         .filter(serverDescription -> !deprioritized.contains(serverDescription.getAddress()))
                         .collect(toList());
 
+                // TODO-JAVA-5908: Evaluate whether the early-return optimization a meaningful performance impact on server selection.
                 if (nonDeprioritizedServerDescriptions.isEmpty()) {
                     return wrappedSelector.select(clusterDescription);
                 }
 
                 List<ServerDescription> selected = wrappedSelector.select(
-                        new ClusterDescription(clusterDescription.getConnectionMode(), clusterDescription.getType(),
+                        new ClusterDescription(
+                                clusterDescription.getConnectionMode(),
+                                clusterDescription.getType(),
                                 nonDeprioritizedServerDescriptions,
                                 clusterDescription.getClusterSettings(),
                                 clusterDescription.getServerSettings()));