The technique that involves speeding up an action by showing it less frequently is known as omitting. When a filmmaker or editor chooses to omit certain parts of an action sequence, they condense the time it takes for that action to occur. This approach can create a sense of acceleration for the audience, allowing the narrative to progress more quickly without lingering on every moment of the action. By strategically leaving out certain moments, the storytelling becomes more efficient while still maintaining the essential elements needed for understanding.
The other options, while related to editing and sequencing in media, do not fit this particular definition. Cutting generally refers to the act of selecting and joining together different shots but does not inherently involve the concept of omission to speed up time. Overlapping typically refers to a technique where an action is shown from different angles or perspectives, which may extend the depiction rather than condense it. Jumpshot is not a standard term associated with editing techniques in this context and does not pertain to speeding up action through omission. Therefore, omitting is the most accurate answer to the question regarding the technique of speeding up action by showing it less frequently.