Development of modification of BPF

Offering extra earnings. It is required to implement BPF according to the Cooley-Tucy algorithm on MatLab. It is necessary to optimize the BPF and compare the classical method with the improved one, in which the multiplication operations are calculated in advance and taken ready-made from memory (database), the speed of calculations should increase. Only direct transformation is required.
You need source code, comments in the source code, flowchart, report to the program