Why does the same swap take 30 seconds sometimes and 20 minutes other times

07 September 2026

The same swap can complete in 30 seconds or stretch to 20 minutes because the time depends on network conditions, not on the swap itself. The actual exchange - where your cryptocurrency is converted to another - is nearly instantaneous; the delay comes from waiting for blockchain confirmations.

Blockchain confirmation times are the primary factor. Every cryptocurrency network has a block time, the average interval between new blocks. Bitcoin targets ten minutes per block, Ethereum about twelve seconds, and many altcoins fall somewhere in between. When you send funds to the exchanger, the swap cannot proceed until your transaction receives a certain number of confirmations. If the network is congested, your transaction might wait in the mempool - the pool of unconfirmed transactions - before it is included in a block. During quiet periods, it lands in the next block; during a surge, it may sit for dozens of blocks. That difference alone can stretch a Bitcoin swap from a few minutes to over an hour.

The exchanger also sets its own confirmation thresholds. For small swaps, it may require only one confirmation. For larger amounts, it might demand three or more. Each added confirmation multiplies the waiting time by the block interval. If the network is slow and the threshold is high, twenty minutes becomes ordinary.

Fees you attach to the transaction matter. A higher fee incentivizes miners to prioritize your transaction. If you use the default fee or a low one, your transaction may be repeatedly passed over. Some wallets let you adjust fees; if you are in a hurry, paying more can reduce the confirmation wait. The exchanger itself does not control your fee - you set it when you send.

Swap size influences processing time indirectly. Very large swaps sometimes trigger manual review by the exchanger’s compliance system. That review is not automated for every trade; it can add unpredictable delay. The exchanger does not advertise its thresholds, but if your swap lingers far beyond typical times, size or pattern of activity may have flagged it.

Liquidity can also cause variation. If the exchanger does not hold sufficient reserves of the destination cryptocurrency, it must source it from elsewhere. That sourcing may involve another swap or a withdrawal from a cold wallet, adding minutes. This is rarer than network congestion but does happen.

What to do while it runs. Check the swap status page the exchanger provides. It will show the current step - awaiting deposit, confirming deposit, exchanging, sending to you. If the step is "confirming deposit," the delay is almost certainly network congestion. If it is "exchanging" or "sending," the bottleneck is on the exchanger’s side. Do not resend funds; that creates a second swap, not a faster one. If you used a low fee, you cannot change it after sending. You can only wait.

When should you worry? If the swap sits for over an hour on a normally fast network like Litecoin or Ethereum, check the exchange’s support or status page. For Bitcoin, two hours is not unusual during high congestion. The hub page "Why a swap sits pending and what to check" covers what to inspect on your end - transaction IDs, block explorers, and common errors - before contacting support.

The core answer is simple: swap time varies because blockchain confirmation times vary, and you cannot control the network. Thirty seconds happens when the network is empty and the threshold is low. Twenty minutes happens when it is busy and the threshold is higher. Both are normal.

Back to memecoins