{"id":12965,"date":"2026-09-08T17:55:27","date_gmt":"2026-09-08T17:55:27","guid":{"rendered":"https:\/\/cryptonews.uk.com\/?p=12965"},"modified":"2026-09-08T17:55:27","modified_gmt":"2026-09-08T17:55:27","slug":"cardanos-leios-6x-scaling-breakthrough-comes-with-a-much-harder-ada-problem","status":"publish","type":"post","link":"https:\/\/cryptonews.uk.com\/?p=12965","title":{"rendered":"Cardano\u2019s Leios 6x scaling breakthrough comes with a much harder ADA problem"},"content":{"rendered":"

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Cardano\u2019s Leios upgrade has demonstrated sixfold throughput gains, but staking economics still depend on paying users.<\/p>\n

The scaling protocol peaked at 26.8 transaction kilobytes per second during its first public testnet phase, compared with a 4.51 TxkB\/s ceiling for Cardano\u2019s existing Ouroboros Praos system, according to the network developer Input Output.<\/p>\n

In the stable final days of the 41-day test, Leios carried 54% of traffic reaching the chain and processed 18 times the transaction count seen on Cardano mainnet over the comparable period. The traffic, however, was artificially generated to stress the system rather than produced by users paying to transact.<\/p>\n

That distinction is becoming increasingly important for ADA holders.<\/p>\n

Cardano\u2019s staking rewards come from a combination of transaction fees and releases from its remaining ADA reserve. The reserve contribution declines over time, leaving network activity to shoulder more of the cost of rewarding stake pool operators and delegators.<\/p>\n

Leios is designed to remove the throughput ceiling that could otherwise prevent Cardano from generating enough transaction fees to make that transition. Its specification explicitly links greater capacity to the network\u2019s long-term economic viability as reserve contributions diminish.<\/p>\n

The engineering side of that equation is starting to take shape. Whether users fill the additional blockspace is now the harder question.<\/p>\n

Leios creates the capacity, not the revenue<\/h2>\n

Cardano\u2019s current Praos design constrains how much transaction data can move through the network while preserving reliable block propagation.<\/p>\n

Leios adds parallel capacity through larger Endorser Blocks that carry additional transactions while the underlying Praos chain continues operating. Committees validate those blocks before recording the transactions, allowing Cardano to process more activity without replacing its existing security model.<\/p>\n

The first public test shows the design can materially raise that ceiling.<\/p>\n

Input Output said the testnet operated for 41 days, producing more than 127,000 blocks and announcing about 30,000 Endorser Blocks. Sixty-three stake pools registered during the phase, while developers shipped a series of fixes for memory leaks, chain forks, crashes, and other implementation problems discovered under load. Input Output said none of those incidents exposed a flaw in the underlying Leios protocol.<\/p>\n

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Related Reading<\/span><\/p>\n

New Cardano partnership promises to monetize your private data, but payouts likely start at just $1.25 a year<\/h3>\n<\/p>\n

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But more available blockspace generates no staking income until somebody pays to use it.<\/p>\n

That is where Cardano\u2019s economic model imposes a separate hurdle.<\/p>\n

A cost analysis accompanying the Leios specification uses a baseline of 48 million ADA in monthly rewards and models a 43% decline by 2029, leaving 20.64 million ADA a month to be replaced through transaction fees under that scenario. The date is a modeling horizon, not when Cardano\u2019s reserve is expected to run out.<\/p>\n

Using an average transaction size of 1,500 bytes and a modeled fee of roughly 0.221 ADA, generating that amount would require about 36 transactions per second sustained continuously through a 30-day month. The broader Leios specification points to roughly 36 to 50 TPS as the relevant range.<\/p>\n