Is UI/UX the biggest problem holding back DeFi from mass adoption?

Hi all! Our team is currently building a DeFi app, something unique. One of our Co-Founders has a PhD in psychology and we have studied over 50,000 reviews, everyone believes that we will see mass adoption in DeFi when there will be a platform that is very very simple and easy to use. We have a Fintech interface with a web3 backend. So far we have done a lot of testing and even people in the age of 60+ years old can use our app. We are still looking for a few more possible beta users/early users that are interested to test out platform. We would like to get more people to test and give us any feedback. We believe that in order to tackle this issue in the space, is very very important to work together.