Competitor Adding 1000 OFF in meta title

I am working for an ecommerce fashion website. where most of our keywords ranking on top 2.

But my direct competitor tweaking their meta tile and add "Upto 1000 OFF" in their title. their all kws are ranking 3-5 position.

I know they are doing it for CTR purpose, and I am afraid about our ctr. if I change our title and add something like the above then I feel there are chances of keyword dropping,

How should I tackle this situation, should I also change my title and add similar like this.