## Problem
Currently, even if `LAMBDA_REMOTE_DOCKER=1`, we unzip the zip files in the directory they are in, which is usually /var/lib/localstack, which usually has a bind mount to the host.
On docker desktop, due to the use of grpc-FUSE (on macos), this can be very slow, about 200 times slower than on volumes / directly on the host. With experimental virtio filesystem enabled (also on macos), this can be reduced to about 30 times as slow, but still problematic.
This means a lambda may take a lot of time processing, for each additional layer some more. This especially affects nodejs lambdas with huge node_modules folders.

## Probable solution
At least if `LAMBDA_REMOTE_DOCKER=1`, we should leave the initial zip files on the bind mount (for persistence etc), but the working directories after unzipping should be located on non-bind mounts, to speed up the IO for unzipping.
context_json_string = "%s" % (json.dumps(context.__dict__) if context else "{}")
        cmd = [
            "node",
            "-e",
            f'const res = require("{main_file}").{function}({event_json_string},{context_json_string}); '
            f"const log = (rs) => console.log(JSON.stringify(rs)); "
            "res && res.then ? res.then(r => log(r)) : log(res)",
        ]
        LOG.info(cmd)
        result = self._execute_in_custom_runtime(cmd, lambda_function=lambda_function)
        return result
    def execute_go_lambda(self, event, context, main_file, lambda_function: LambdaFunction = None):
        if lambda_function:
            lambda_function.envvars["AWS_LAMBDA_FUNCTION_HANDLER"] = main_file
            lambda_function.envvars["AWS_LAMBDA_EVENT_BODY"] = json.dumps(json_safe(event))
        else:
            LOG.warning("Unable to get function details for local execution of Golang Lambda")
        cmd = GO_LAMBDA_RUNTIME
        LOG.debug("Running Golang Lambda with runtime: %s", cmd)
        result = self._execute_in_custom_runtime(cmd, lambda_function=lambda_function)
        return result
    @staticmethod
    def set_default_env_variables():
        
        default_env_vars = {"AWS_DEFAULT_REGION": aws_stack.get_region()}
        env_vars_before = {var: os.environ.get(var) for var in default_env_vars}
        os.environ.update({k: v for k, v in default_env_vars.items() if not env_vars_before.get(k)})
        return env_vars_before
    @staticmethod
    def reset_default_env_variables(env_vars_before):