Need improvement in front-end design

////////////WP v5.2.3, Impress Listings plugin v2.4.0////////////
Design is ugh, permanent links are not working, conflict with contactForm7 plugin, not working for sales & marketing plan.
This plugin has enough input fields a realtor needs; but that’s pretty easy, just input and output. The main point is that when we need to sell multi-million-dollar homes, their front-end design looks kind of cheasy, even the paid templates. Photos are too small, no zoom, no popup when clicked, details in the table are not displayed consistently. I think this probably caused by default theme in my system. I think that this plugin was built in rush so that it’ll work with the IDX back-end but they don’t give front-end enough care. My opinion is that the free single-page design should be custom designed with PRO look and feel, instead of re-using the WP installed theme.
I’d like my potential visitors scan a QR Code on my home-for-sales sign, but I really don’t want to redirect to my listing page because it doesn’t look professional for a 2-mil-dollar home. I’ll need to build a custom page that looks more attractive, but I have to manually retype all the details, data, and upload photos again. So this plugin is just a waste for a realtor’s marketing plan. It’s good if you just need to type some details and show on a page but it’s not professional if you really want to sell an expensive home.