Investing in LISA instead of pension?

Hi, I contribute 4% of my salary to the pension and my employer gives 8%, so in total about £240 is going into my pension every month. However, if I stop contributing to my pension, I will have £100 more every month which I could save in my LISA for the 25% bonus, 5% interest rate from my provider (TEMBO) and I could actually start saving for a house. Obviously I need to get a higher paying job, but how stupid is this idea?