Walaykum us salam brother
First of all congrats for buying this beauty & very good decision
For hard shifting nothing is with your bike your bike only clutch needs adjustment in new bike this issue is common & for vibration+heat your bike,s engine is new inside engine parts are making seats & polishing each other these are cause for heating & vibration
Your bike,s engine is new be calm on throttle till 1000km increase speed gradually step by step everything is written in bike,s manual & also don,t forget to change its first oil on 300km use yamalube till 1000km after that use some good quality engine oil like zic etc....