Why cruisers suit commerce raiding

Why are cruisers and battlecruisers better commerce raiders than battleships?

They can search and shift position faster, giving them a better chance to find shipping and avoid interception.

A battleship emphasizes armour and combat with enemy capital ships, while a commerce raider needs to cover broad sea areas. Cruisers and battlecruisers can shift patrol zones more quickly, increasing the chance of finding merchant shipping. Their speed also helps them avoid or break contact with the stronger forces dispatched to hunt them. A battleship may be formidable in a surface action, but its lower speed makes eventual tracking and interception more likely.