How do mobile touch screen events affect page response time?

When mobile touchscreen events (such as clicks, swipes, and zooms) are triggered, they directly affect page response time through event handling logic. Typically, the method of event binding, the complexity of the processing function, and the hardware performance of the device collectively determine the degree of response delay. Event types and frequency: High-frequency triggered events (such as touchmove, touchstart), if not optimized, will occupy CPU resources due to the continuous execution of processing functions, leading to response lag; single events (such as click) are affected by the efficiency of event delegation, and directly binding multiple elements will increase DOM query time. Complexity of processing logic: Event processing functions that include a large number of DOM operations, data calculations, or asynchronous requests will prolong execution time, especially on mid-to-low-end devices. Optimization suggestions: Prioritize event delegation to reduce the number of bindings, use debouncing/throttling for high-frequency events to control execution frequency, and simplify DOM operations in processing functions. These methods can effectively reduce the impact of touchscreen events on page response time and improve mobile interaction experience.