I don't think anyone here can answer your question with the little details you provided.
You'll have priority for check-in, security and boarding, do you also need to go through immigration?
If yes, nobody can predict how long these queues will be, you also didn't specify when in April you'll be travelling or what time of day you land/depart.
There's also a big difference if you're travelling with 3 toddlers and 6 pieces of luggage vs. if you're travelling with 2 teenagers and only hand luggage, it's not really clear why you'd consider the VIP service.