When we need to show this we will use the following construction:
намного + comparetive degree (быстрее, больше, сильнее и т.д.)
meaning “much faster, bigger, stronger, etc.”
Эта машина намного быстрее.
This car is much faster.
Эта сумка намного дешевле.
This bag is much cheaper.
By the way, it might be interesting for you to learn that the Olympic motto “Faster, Higher, Stronger” is translated into Russian as Быстрее, Выше, Сильнее.
Thank you and good luck with you studies!