Unlikely but a down in 3 seconds magic trick probably isn’t the best way forward.
There are many things you can try on the flavour side. There are the Huel flavour pouches, this thread or the Huel recipes page.
My personal tips are to use chilled bottled water with ice. Leaving it in the fridge for more than 3 hours will also make it smoother. And I presume you’re using Vanilla?