Because LTC pools also have days with as low as 50-70% LTC profitability. You don't ever get straight 100.00000000%, ever. There's always some bad or good luck.

Most single-coin pools simply don't show such stats. But some of them do. Just an example from straight BTC pool stats: https://www.btcguild.com/index.php?page=pplns - at the very bottom of the page they show their results over several time spans which are (at the moment when I write this):


This shows that 75% day is perfectly normal even for a large pool which has 10-15% of total network hashrate.

In the long term mining straight LTC will give 98-99% LTC profitability (it won't be 100% because of orphans, etc). There will be days with 70% and days with 130%, but in the long term it will be just slightly below 100%, like 98-99%.

When you're mining at CleverMining, part of your hashrate goes to mining LTC and part of your hashrate goes to mining other coins (because not always there are other coins more profitable than LTC). That LTC part will generate ~98% in the long term just as if you were mining on a straight LTC pool. That other-coins part will generate >98% in the long term. The combined and final result is our 106% LTC profitability over the last 30 days compared to ~98% which you can expect at a straight LTC pool, so it's 8% better. And this is your reason to stay at CleverMining.