yes, my vertex 3 is very fast. loads windows before the 4 blobs make the logo. I guess 24 sec it's all that bad though.
May I suggest that boot time, including bios startup time should not be an issue.
Instead of shutting down, just go to sleep using the s3 sleep state( not hibernation). The contents will be kept in ram, and the pc enters a very low power state. It takes only two seconds or so.
On wake up, it only takes the same 2-3 seconds.