Change the benchmarking info text on -O and disable it if -w is already set

src/terminal.c

@@ -39,8 +39,15 @@ void welcome_screen (hashcat_ctx_t *hashcat_ctx, const char *version_tag)
     {
       event_log_info (hashcat_ctx, "%s (%s) starting in benchmark mode...", PROGNAME, version_tag);
       event_log_info (hashcat_ctx, NULL);
-      event_log_advice (hashcat_ctx, "Benchmarking uses optimized kernels (-O). To disable, use a workload profile (-w)");
-      event_log_advice (hashcat_ctx, NULL);
+
+      if (user_options->workload_profile_chgd == false)
+      {
+        event_log_advice (hashcat_ctx, "Benchmarking uses hand optimized kernel code by default.");
+        event_log_advice (hashcat_ctx, "You can use it in your cracking session by setting the -O option.");
+        event_log_advice (hashcat_ctx, "Note that using optimized kernel code limits the maximum supported password length.");
+        event_log_advice (hashcat_ctx, "To disable the optimized kernel code in benchmark mode use the -w option.");
+        event_log_advice (hashcat_ctx, NULL);
+      }
     }
     else
     {