How to reduce PWA website space usage? PWA taking up huge space

I recently deployed my website (https://www.travelengine.co/) and started using PWA to enhance the experience. The PWA works good and is able to cache offline articles as well. However, the issue I am facing is that the site usage has become huge. It happens on my chrome android as well as chrome desktop. Even after clearing cache, the usage spikes close to 800MB within just 2 refreshes.

Please help. How should I fix that? I am attaching the screenshots.

PWA Location: https://www.travelengine.co/service-worker.js