Blockchain’s Speed Dilemma: Beyond Transactions Per Second
For years,blockchain developers focused on one goal: speed. Transactions per second (TPS) was the benchmark. Yet, speed alone hasn’t led to mass adoption. High TPS alone isn’t enough for mass adoption.The bottleneck problem is the real issue.
High-speed blockchains often fail during peak demand.This is due to structural weaknesses. The bottleneck problem arises when blockchains prioritize speed without addressing systemic friction. These limits become apparent during spikes in user activity.
The first bottleneck is at the validator and node level.Nodes need significant hardware resources to process many transactions quickly. However, hardware has limits. underperforming nodes can delay block propagation or drop out,fragmenting consensus and slowing the network.
The second issue is user behaviour. During high traffic, mempools flood with activity. Users and bots pay higher fees to jump the queue, pushing out legitimate transactions. This degrades user experience.
Propagation delay is another problem. Rapid message volume can cause uneven data sharing between nodes. This lag can trigger temporary forks and wasted computation, undermining trust in finality.
Consensus algorithms also face stress. High-frequency block creation places enormous pressure
