Final answer:
The low-performance, large-size segment moves or "drifts" the slowest on a perceptual map.
Step-by-step explanation:
The low-performance, large-size segment moves or "drifts" the slowest when tracking market segments on the performance and size perceptual map. This segment has a lower level of performance but a larger size, indicating that it represents a larger market share compared to the other segments.
When market segments are tracked on a perceptual map, the movement or "drift" of a segment refers to how much it shifts over time. The larger size of the low-performance, large-size segment makes it less susceptible to rapid changes in the market, resulting in slower movement.
On the other hand, the high-performance segments, both large-size and small-size, are likely to exhibit faster movement on the perceptual map due to their higher level of performance. These segments may experience shifts in response to changing customer preferences or competitive factors.