At multipass VBR(including 2 pass VBR), saves analyzing result of 1st pass to cache, then the encoding process would be boosted by using the result at 2nd (or later) pass(es).
Open up TMPGEnc and go to Option=>Environmental=>CPU=>Cache
Tick the box plus give the cache at least 3 gigs but make sure you have so much space left.
The tip will boost the time to convert a movie by 20-50 %,it depends on how much cache you are willing to use.
You find the VBR settings here:
<span style='color:blue'>EDIT:Donīt download the newest version cuz there is a bug or something which makes this error come up:
And the cache settings look like this:
The best version is v2.58 (old version) and you can grab it here:TMPGEnc 2.58 Plus
Error:If you donīt find the cache settings,then itīs because you need the "plus" version which you can download on the link above.Scroll down to TMPGEnc 2.58 plus to find it.