Chrome DevTools: paused before potential out-of-memory crash
Record a profile with memory tab in chrome dev tools. You can investigate there which functions consume memory
Here's a great guide:https://developers.google.com/web/tools/chrome-devtools/memory-problems/
Maybe this is late and very obvious, but you can use the "Memory" tab in the Chrome developer tools to create a memory snapshot while loading/browsing your app in order to investigate what is eating up your memory (given that it actually is your app that is eating up the memory).