EDIT: It appears this only affects some worlds, though I have had worlds that were working just fine suddenly start being affected by this. This affects all game ticks, not just redstone. Entities move slower, things take longer to update, and such.

I've noticed something very peculiar in Minecraft 1.8. Redstone has been incredibly slowed down. For example, the famous double repeater clock will now go tick ----- tick ----- tick instead of tick-tick-tick, if that makes any sense. ALL of my redstone and command block inventions are broken because of this, including my RoadCraft industrial system (a command block contraption). PLEASE fix this as it is very crippling to my inventions.