Increase the TPS of AElf.

[chopin-fan]

Increase the TPS (Transactions Per Second) of AElf. fixes #3589

[codecov]

Codecov Report

Attention: Patch coverage is 92.77108% with 12 lines in your changes missing coverage. Please review.

Project coverage is 90.64%. Comparing base (542043d) to head (a6628c8).

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #3590      +/-   ##
==========================================
+ Coverage   90.59%   90.64%   +0.04%     
==========================================
  Files         668      676       +8     
  Lines       25980    26068      +88     
  Branches     2328     2346      +18     
==========================================
+ Hits        23537    23629      +92     
+ Misses       2327     2324       -3     
+ Partials      116      115       -1     

Files	Coverage Δ
...PoSContract_ACS11_CrossChainInformationProvider.cs	98.41% <100.00%> (ø)
...DPoS/AEDPoSContract_ProcessConsensusInformation.cs	80.70% <100.00%> (ø)
...act/AElf.Contracts.Consensus.AEDPoS/Types/Round.cs	90.44% <100.00%> (ø)
...ontracts.Election/ElectionContract_Maintainence.cs	81.73% <100.00%> (+0.05%)	⬆️
contract/AElf.Contracts.Election/ViewMethods.cs	86.03% <100.00%> (+0.04%)	⬆️
...ultiToken/TokenContract_ACS2_StatePathsProvider.cs	86.50% <100.00%> (ø)
...f.Contracts.MultiToken/TokenContract_Delegation.cs	93.23% <100.00%> (ø)
...deOps/Patchers/Module/ResetFieldsMethodInjector.cs	80.17% <100.00%> (ø)
...CodeOps/Validators/Whitelist/IWhitelistProvider.cs	100.00% <100.00%> (ø)
src/AElf.Cryptography/CryptoHelper.cs	88.72% <100.00%> (ø)
... and 30 more

... and 2 files with indirect coverage changes