Post editor it is very long loaded, users of FireFox and Opera can not view this, but at users Internet Explorer post editor sometimes at all don't loading. I think that it from for attachment system which are am lower than a post editor. Can I turn off attachment system?

Well, usually the post editor should load. Perhaps you should submit a ticket to IPS about this.

I have no problems with it, do you have problems here or on forums elsewhere?

This problem is on all IPB 2.2.2 But as I have noticed only in the standard skin.

I would would like that Invision Power paid attention to speed of loadings of pages of a forum and tried to reach as it is possible for fast speed of their loading.

IP.Board 2.2.2 is just as fast as IPB 2.1.7, if not faster. Maybe your internet has slowed down?