Fast VPS to Canada for e-commerce, 100k products

[Armoriso]

Hello, have Opencart based online shop in Canada. I want add up to 100 000 products. and 3000 menus/submenus.
Can anyone recommend fast VPS for me? (and is there any example website) Is GTHost.com reliable vps host? Others?

I have search many offers, but i don't know which one is best.