I'm sure this suggestion has been around a while, but since you mentioned looking into silver chest opening again, let me make it again:
Instead of speeding up chest opening, just let us trade in silver chests in chunks of 1k, 10k or 100k for the average amount of gold, buffs and mats.
The bottleneck in opening chests is how long it takes to generate a bunch of detailed information that veteran players don't care about, which has a very easy solution, since, you know, we don't care about it.
It doesn't matter how much gold or how many buffs are in each individual chest, or what specific gear items are being disenchanted. All that matters is the total amount, and it should be trivial for you to figure out what the average amount is for 1k/10k/100k chests.
Just let us trade the chests for that, rather than wasting time and effort on details that don't matter.