## 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.
self.timeout = None
        self.last_modified = None
        self.vpc_config = None
        self.role = None
        self.kms_key_arn = None
        self.memory_size = None
        self.code = None
        self.dead_letter_config = None
        self.on_successful_invocation = None
        self.on_failed_invocation = None
        self.max_retry_attempts = None
        self.max_event_age = None
        self.description = ""
        self.code_signing_config_arn = None
        self.package_type = None
        self.architectures = ["x86_64"]
        self.image_config = {}
        self.tracing_config = {}
        self.state = None
    def set_dead_letter_config(self, data):
        config = data.get("DeadLetterConfig")
        if not config:
            return
        self.dead_letter_config = config
        target_arn = config.get("TargetArn") or ""
        if ":sqs:" not in target_arn and ":sns:" not in target_arn:
            raise Exception(
                'Dead letter queue ARN "%s" requires a valid SQS queue or SNS topic' % target_arn
            )
    def get_function_event_invoke_config(self):