## 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.
rw=True,
                propagation="rprivate",
            )
            result = Util.get_host_path_for_path_in_docker("/var/lib/localstack")
            get_volume.assert_called_once()
            assert result == "/home/some-user/.cache/localstack/volume"
    def test_host_path_for_path_in_docker_linux_wrong_path(self):
        with mock.patch(
            "localstack.services.awslambda.lambda_executors.get_default_volume_dir_mount"
        ) as get_volume, mock.patch("localstack.config.is_in_docker", True):
            get_volume.return_value = VolumeInfo(
                type="bind",
                source="/home/some-user/.cache/localstack/volume",
                destination="/var/lib/localstack",
                mode="rw",
                rw=True,
                propagation="rprivate",
            )
            result = Util.get_host_path_for_path_in_docker("/var/lib/localstacktest")
            get_volume.assert_called_once()
            assert result == "/var/lib/localstacktest"
            result = Util.get_host_path_for_path_in_docker("/etc/some/path")
            assert result == "/etc/some/path"
    def test_lambda_policy_name(self):
        func_name = "lambda1"
        policy_name1 = get_lambda_policy_name(func_name)
        policy_name2 = get_lambda_policy_name(lambda_api.func_arn(func_name))
        assert func_name in policy_name1
        assert policy_name1 == policy_name2