To make this as easy as possible, go to settings-riding style: Amateur
Traction Control: High
Race Line: On
Brake Method: Combined
Go to solo- time attack, select the full TT course. I suggest noon just to be as bright as it can. I also suggest the Triumph Daytona 675 supersport, handles nice and is stable in slow corners and bumps.
The course isn't to tricky to ride apart from the very last sector, just ease off where you feel uncomfortable but take care in the last few corners you don't need to ride around the roundabout just turn right.
Took me 20 minuets to complete my lap.