## 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.
save_file(jar_file, "")
        lib_file = os.path.join(base_dir, "lib", "lib.jar")
        mkdir(os.path.dirname(lib_file))
        save_file(lib_file, "")
        classpath = lambda_executors.Util.get_java_classpath(jar_file)
        self.assertIn(":foo.jar", classpath)
        self.assertIn("lib/lib.jar:", classpath)
        self.assertIn(":*.jar", classpath)
    def test_get_java_lib_folder_classpath_archive_is_None(self):
        self.assertRaises(TypeError, lambda_executors.Util.get_java_classpath, None)
    @mock.patch("localstack.utils.cloudwatch.cloudwatch_util.store_cloudwatch_logs")
    def test_executor_store_logs_can_handle_milliseconds(self, mock_store_cloudwatch_logs):
        mock_details = mock.Mock()
        t_sec = time.time()  
        t_ms = time.time() * 1000  
        
        lambda_utils.store_lambda_logs(mock_details, "mock log output", t_ms)
        
        today = datetime.datetime.utcfromtimestamp(t_sec).strftime("%Y/%m/%d")
        log_stream_name = mock_store_cloudwatch_logs.call_args_list[0].args[1]
        parts = log_stream_name.split("/")
        date_part = "/".join(parts[:3])
        self.assertEqual(date_part, today)
    def _create_function(self, function_name, tags=None):
        if tags is None:
            tags = {}
        region = lambda_api.LambdaRegion.get()
        arn = lambda_api.func_arn(function_name)
        region.lambdas[arn] = LambdaFunction(arn)
        region.lambdas[arn].versions = {