IMO I think the longer update time frame will always happen on any decentralized project(the larger/bigger community is, the longer it will take to happens).There's just no way to make it happen in one day since we have multiple conflicts of interest.
If you want something to happen quicklywithout any "resistance"might as well stick with ICO projects.
Hope the "conflict of interest" (or probably resistance) is not connected to anonymity/privacy.
If you want such delays reduced in large decentralized community, just have principles/rules everyone must stick to during consensus or Bitcoin development.
The Principles in Bitcoin case are:Decentralization
Transparency
Immutablity
Anonymity/privacy
Censorship resistant
Permissionless/trustlessness
Security/safety
Deflationary currency
Etc
Everyone can agree/disagree and build things on Bitcoin without violating the Principles.
The principles should be improved instead and not violated.
The Principles can be withdrawn or taken away from people who commit serious crimes while using Bitcoin. None should be taken away from innocent people... It's their rights.