Search strategy matters
Randomly staring at a letter grid is inefficient. A better method is to use distinctive letters, unusual letter pairs or the beginning and ending of a target word as anchors. Once an anchor is found, the solver checks the possible directions around it.
Why themed puzzles feel different
A themed list creates expectations about the vocabulary that may appear. That can make the puzzle more approachable while also exposing the solver repeatedly to related words. The puzzle itself remains a visual search task, but the vocabulary gives it context.
Large print changes usability
A puzzle can be challenging without being visually cramped. Larger type and generous spacing can make the search process more comfortable, especially during longer sessions. Good puzzle design separates difficulty from unnecessary visual friction.