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There are a few potential solutions to this problem:

1. Increase the heap memory limit: You can increase the amount of memory that Node.js uses by setting the --max-old-space-size flag when running your app. For example, node --max-old-space-size=4096 would set the heap memory limit to 4GB.

2. Optimize your code: If your code is creating unnecessary objects or running expensive operations, it can quickly fill up the heap memory. You can use tools like the Chrome DevTools Performance tab to identify performance bottlenecks and optimize your code accordingly.

3. Use lazy loading: If your app is loading all of its components and pages at once, it can quickly consume a lot of memory. Consider using lazy loading to only load components as they are needed, which can significantly reduce memory usage.

4. Use server-side rendering: If your app is producing a large amount of HTML on the client-side, it can quickly fill up the heap memory. Consider using server-side rendering to generate the HTML on the server instead, which can significantly reduce memory usage.

5. Use a different garbage collection algorithm: Node.js uses the V8 garbage collector by default, but there are other algorithms available that may be better suited to your app's memory usage profile. For example, the --gc=mark-sweep flag uses a different garbage collector that may be more efficient for your app.