I've ran into similar issues and have had to break my projects that get that large into smaller projects. Usually that's a good idea anyways because it gets really hard to track that many test suites or test cases. What does that project cover? Can it be parsed into smaller, more cohesive projects?
I also faced similar issue which was around 200MB so what i did was removing all the physical documents(pdfs generally) and providing the dynamic path of those pdf which reduces the size of my project to around 50+MB and that works fine to me.
You can try this too if having any pdf or any file associated with requests.
