Disable the nonlinear kernel by default for speed.

pes_to_spec/model.py

@@ -508,7 +508,7 @@ class Model(TransformerMixin, BaseEstimator):
                  tof_start: Optional[int]=None,
                  delta_tof: Optional[int]=300,
                  validation_size: float=0.05,
-                 n_nonlinear_kernel: int=10000):
+                 n_nonlinear_kernel: int=0):
         # models
         x_model_steps = list()
         x_model_steps += [('select', SelectRelevantLowResolution(channels, tof_start, delta_tof))]