Add a new config to speed up block sync

[yzang2019]

Describe your changes and provide context

This PR speed up block sync and fix a few issues:

1. The bpr pending request number is too high, leading to overuse of network and possible gaps
2. The peer pickup logic is not great, so that it would have a high chance to pick a slow peer or not responding peer, leading to constant timeout
3. We should never switch to consensus mode if we are behind, we should stick to the catch up mode

   Testing performed to validate your change

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 29.03226% with 22 lines in your changes missing coverage. Please review.

Project coverage is 58.08%. Comparing base (96d05f0) to head (d53293b). Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/p2p/peermanager.go	33.33%	7 Missing and 3 partials :warning:
node/setup.go	0.00%	5 Missing and 1 partial :warning:
internal/blocksync/pool.go	33.33%	3 Missing and 1 partial :warning:
internal/blocksync/reactor.go	33.33%	2 Missing :warning:

Additional details and impacted files

[](https://app.codecov.io/gh/sei-protocol/sei-tendermint/pull/244?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sei-protocol) ```diff @@ Coverage Diff @@ ## main #244 +/- ## ========================================== - Coverage 58.21% 58.08% -0.13% ========================================== Files 249 249 Lines 34485 34510 +25 ========================================== - Hits 20074 20046 -28 - Misses 12825 12872 +47 - Partials 1586 1592 +6 ``` | [Files with missing lines](https://app.codecov.io/gh/sei-protocol/sei-tendermint/pull/244?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sei-protocol) | Coverage Δ | | |---|---|---| | [config/config.go](https://app.codecov.io/gh/sei-protocol/sei-tendermint/pull/244?src=pr&el=tree&filepath=config%2Fconfig.go&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sei-protocol#diff-Y29uZmlnL2NvbmZpZy5nbw==) | `63.11% <100.00%> (ø)` | | | [config/toml.go](https://app.codecov.io/gh/sei-protocol/sei-tendermint/pull/244?src=pr&el=tree&filepath=config%2Ftoml.go&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sei-protocol#diff-Y29uZmlnL3RvbWwuZ28=) | `51.35% <ø> (ø)` | | | [internal/blocksync/reactor.go](https://app.codecov.io/gh/sei-protocol/sei-tendermint/pull/244?src=pr&el=tree&filepath=internal%2Fblocksync%2Freactor.go&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sei-protocol#diff-aW50ZXJuYWwvYmxvY2tzeW5jL3JlYWN0b3IuZ28=) | `51.97% <33.33%> (ø)` | | | [internal/blocksync/pool.go](https://app.codecov.io/gh/sei-protocol/sei-tendermint/pull/244?src=pr&el=tree&filepath=internal%2Fblocksync%2Fpool.go&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sei-protocol#diff-aW50ZXJuYWwvYmxvY2tzeW5jL3Bvb2wuZ28=) | `77.56% <33.33%> (-2.35%)` | :arrow_down: | | [node/setup.go](https://app.codecov.io/gh/sei-protocol/sei-tendermint/pull/244?src=pr&el=tree&filepath=node%2Fsetup.go&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sei-protocol#diff-bm9kZS9zZXR1cC5nbw==) | `69.56% <0.00%> (-1.24%)` | :arrow_down: | | [internal/p2p/peermanager.go](https://app.codecov.io/gh/sei-protocol/sei-tendermint/pull/244?src=pr&el=tree&filepath=internal%2Fp2p%2Fpeermanager.go&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sei-protocol#diff-aW50ZXJuYWwvcDJwL3BlZXJtYW5hZ2VyLmdv) | `79.31% <33.33%> (-0.83%)` | :arrow_down: | ... and [12 files with indirect coverage changes](https://app.codecov.io/gh/sei-protocol/sei-tendermint/pull/244/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sei-protocol)