The networkx simulation adds input signals after 1 second of simulation, whereas LIF lava does not.

[a-t-0]

Adapt the networkx simulation by adding a delay of 1 timestep before adding the input signals of a spike, such that it runs in sync with the lava LIF simulation.

(Simply delaying entire snn networkx simulation by 1 timestep yields incorrect result as that does not allow for computation of the bias, etc for v[t] and u[t]). Ensure the default values, like bias for v[t], etc are computed at the first/same timestep.

[a-t-0]

Incorrect hypothesis, the networkx neurons were re-initialised at every step of the simulation.