Dear jatinsmehta,
It is quite natural that travellers want to see “everything”, in addition Switzerland is smaller than most countries so that people tend to think travelling from one place to the other takes no time. If you read some reports in the other section of this forum you will see that several travellers report that they decided to skip this and that in favour of travelling slowly and just enjoy their good time. But that does not allow me to be arrogant and if I gave you that impression in my previous post kindly accept my apologies.
If you want to do everything in your plan you should get up early and be on the move at 8 am, and don’t expect to have finished your day before 6 or 7 pm. Some travellers feel they are on leave and prefer to enjoy their breakfast, and don’t really get started before 10 am…
I suggest you keep your plan as it is, and decide to skip this or that depending on your energy, the weather, the experience of the previous days, etc.
Day 1: You are aware that the Olympic Museum is in Lausanne, not Geneva. Your plan is feasible (you will not be jetlagged, will you?), but don’t you want to see anything in Geneva?
Day 2: If you do a Lavaux hike (beautiful by good weather!) it will take you more than the morning. I have visited only one chocolate factory, and was not impressed. Because of their industrial secrets and for hygienic reasons, visitors were kept at a distance, and chocolate at the shop at the end of the visit was not cheaper than at the supermarket down the street.
http://www.myswissalps.com/hi king/lutry-epesses
Days 3 & 4: Okay, you got two days here. Five Lakes hike is for good and enthusiastic hikers.
Day 5: Where will you have spent the night? Zermatt or Interlaken? Wengen is on one side of a valley, Schilthorn on the other side. Going from one to the other takes time. This website has a link to the timetables. Maybe what you will decide to skip is the boat trip, but the choice is yours.
Day 6: I understand you’ll be staying at Wengen. Grindelwald is in another valley, so, as you say, Trummelbach Falls is “if time permits”
Day 7: OK
Day 8: If you’ve been to Schilthorn and Rigi, you may want to skip Titlis. On that day you travel as far as Geneva.
Good luck