My 1 year old toshiba laptop with core i3 (windows 10) is far slower than what anyone would expect normal

Question

It takes 10 mins to wake from hiberation and a further 10 mins to being able to engage in anything on the internet after waking from hibernation. My Norton security says there is no threat. I stupidly bought this computer with the 'help' of a saleperson and regret the speed completely. Somehow I feel there is something else happening that is not just the i3core. Using this computer is generally excruciatingly slow and I have the fastest NBN in Australia. I am easily overwhelmed with this tech stuff so clear advise and help with navigation would be awesome. Please help!