Why Go compiles faster: All imports are explicitly listed at the beginning of each source file, so the compiler does not have to read and process an entire file to determine its dependencies. The dependencies of a package form a directed acyclic graph, and because there are no cycles, packages can be compiled separately and perhaps in parallel. Changes only trigger recompilation of affected files and their dependencies. Go intentionally avoids complex language features like inheritance, and operator overloading. This reduces parsing complexity. Go's compiler leverages multiple cores for parallel compilation of independent files, maximizing CPU utilization. Unused import in Golang is an error and will only import the packages needed. It makes sure the compilation time is not increased due to unused packages.