An question about AFL algorithm

[Zhg9300]

Hello, thanks for sharing your wonderful codes.
Recently I’m trying to reproduce the results in the paper FAIRRESOURCEALLOCATION INFEDERATED LEARNING. While plotting the right figure on Figure 9(q-FFL is more efficient than AFL), I failed to get a similar plot as given. No matter how I tune the parameters, the lowest accuracy among all devices remains nearly 20% for AFL algorithm even after 80 rounds of training. Could you please tell me how to set the two parameters $\gamma_w$ and $\gamma_\lambda$ ?