## 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.
return jsonify(data)
@app.route("/<version>/tags/<arn>", methods=["GET"])
def list_tags(version, arn):
    region = LambdaRegion.get()
    lambda_function = region.lambdas.get(arn)
    if not lambda_function:
        return not_found_error(arn)
    result = {"Tags": lambda_function.tags}
    return jsonify(result)
@app.route("/<version>/tags/<arn>", methods=["POST"])
def tag_resource(version, arn):
    region = LambdaRegion.get()
    data = json.loads(request.data)
    tags = data.get("Tags", {})
    if tags:
        lambda_function = region.lambdas.get(arn)
        if not lambda_function:
            return not_found_error(arn)
        if lambda_function:
            lambda_function.tags.update(tags)
    return jsonify({})
@app.route("/<version>/tags/<arn>", methods=["DELETE"])
def untag_resource(version, arn):
    region = LambdaRegion.get()
    tag_keys = request.args.getlist("tagKeys")
    lambda_function = region.lambdas.get(arn)
    if not lambda_function:
        return not_found_error(arn)
    for tag_key in tag_keys:
        lambda_function.tags.pop(tag_key, None)