## 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.
opts = config.LAMBDA_JAVA_OPTS or ""
        
        if "_debug_port_" in opts:
            if not cls.debug_java_port:
                cls.debug_java_port = get_free_tcp_port()
            opts = opts.replace("_debug_port_", ("%s" % cls.debug_java_port))
        else:
            
            m = re.match(".*address=(.+:)?(\\d+).*", opts)
            if m is not None:
                cls.debug_java_port = m.groups()[1]
        return opts
    @classmethod
    def get_host_path_for_path_in_docker(cls, path):
        """
        Returns the calculated host location for a given subpath of DEFAULT_VOLUME_DIR inside the localstack container.
        The path **has** to be a subdirectory of DEFAULT_VOLUME_DIR (the dir itself *will not* work).
        :param path: Path to be replaced (subpath of DEFAULT_VOLUME_DIR)