So just to sum up some of the recent problems to get it clear:
Something (probably realisticpain) is wanting to overlay tunnel vision always. It seems that this gets "paused" or "held off" when in any kind of menu such as inventory or the options. When you come out of the menu, the frames all want to be shown at once causing a huge lag spike. Not even my i7-4770k can handle loading 3k+ frames (depending on time in a menu) in less than 2 seconds. a lot of the "i have lag when chests" seems to revolve around this and it doesnt seem to always show the "tunnel vision" but i am pretty sure it has to do with loading the overlay.
Enviromine frequently "locks" and does not seem to update. This shows as all your bars staying exactly where they are. This can be caused by something as small as logging out and back in or dieing. I dont know what's going on in this one.
Cant climb anything using smart moving. I'm holding the grab button and 'w' as I get close to a vertical surface, but nothing happens. i can sprint and power jump, but no climbing (1.2.4). Any tips?
Esc>controlls
check your smart moving buttons for one. two press f7 and make sure you're set to "Medium" for the default. you may need to cycle through a few times because that is also the button for chunk lines and you probably dont want that up. just cycle till you have medium moving and blank chunk lines.
Now that i know how to basic, this modpack is getting good.