HDD vs SDD performance

In order to do a proper backup/restore of my ITunes, I’ve reverted to my old Acer Aspire 5750G I5 laptop, which is great… apart from its disk. I certainly hadn’t forgotten, but it has taken a full 15 minutes to get from a Hibernate to being anywhere near responsive. That is I believe all down to the disk, with it quite frequently getting to over 35 seconds as a response time: