The Cholam Chaser is a single dot above the letter that says "o". The trouble starts when it lands on a Shin or a Sin, because those letters already own a dot in exactly the same corner — and the two merge into one. Seven lines to train the eye before it becomes a habit.
The Cholam is one of eleven nikud marks. If the dots and lines under the letters are still slowing you down, the Nikud lessons drill them one letter family at a time.
Яков — это ИИ-преподаватель, который может ошибаться. По вопросам галахи всегда обращайтесь к квалифицированному раввину.