After modifying the row spacing of the lvgl v8.1 roller control, the sliding damping decreases

General discussion
1

After modifying the row spacing of the lvgl v8.1 roller control, the sliding damping decreases. How to solve this problem

lv_obj_set_style_text_line_space(roller1, 40, 0);

2

roller

It looks good to me. Am I missing something?