Reduced block production timeout

[Frozen]

Reduced block production timeout. On my local machine produced 1639 block for 1664 seconds which is no more than 1.5% deviation for the ideal scenario

[mur-me]

Let's check this on the devnet as we discussed

[mur-me]

Well, what we have right now after the run in the devnet:

• it was good in the logs - all 60 blocks were produced and validated, but only in the logs.
• but in fact, external validators, especially far away geographically from the current leader was signing only 12-15% of the blocks and were kicked off from the committee.
• only shard 0 was affected, when the shard 1 nodes were good generally.

Right now I'm suspecting that there should be more investigation or/and code change for the shard 0