In order to fully type the t function, we recursively map all nested keys from your primary locale files or objects. Depending on the number of keys your project have, the compilation time could be noticeably affected. If this is negatively influencing your productivity, this feature might not be the best choice for you. In our tests, we got great results when declaring up to 7000 keys, but it may vary according to the project size as well. If needed, you can always open an issue on Github to get some help from us.