@Ahmed Saleh I can think of 2 alternative ways to achieve that same echo effect, without effects. But it will require more manual work. One is to keep that same position animation but instead of using those dots, use a line with stroke, using the trim path modifier with round cap, and you adjust the length of the line with the trim path. The other one could be using only the trim path, not moving the shape at all, but creating the path with the motion they'll have. and moving the offset and adjusting the start/end to modify the length.