On 2016/04/04 13:27, Steve Litt wrote:
> Isn't Icedove a re-branded Thunderbird? Every time I try to use
> Thunderbird, it's an order of magnitude slower than Claws-Mail.

I think XUL shows it's weakness. I am not an expert, but AFAIR, this is
the reason why the Mozilla family of applications became slow. The
interface is like molasses on old machines. I don't think it has
anything to do with "lightning". That being said, I am all for
decoupling as much as possible.