This stage is not one to worry about. It is mostly downhill / flat along country roads. The Ingles is spoiled when the new route takes you by the side of a motorway for a good 40 minutes, which is rather soul destroying walking along a motorway embankment. Therefore, try to ignore the signs sending you right down that way, carry on the road and then right after another kilometre to walk along a country lane to Sigueiro.
The stages to worry about are
Ferrol to Pontedeume - this is really long for a first day, so consider breaking this up staying overnight at Xubia or Neda, or take the shortcut across the M-651 bridge to Fene
Betanzos to Meson de Vento - this is a really long stage at almost 30km. It starts with a tough climb out of Betanzos, and whilst the steep climb to Hospital de Bruma has been removed, the climb up is now long and steady. Also, apart from at Presedo and Bar Casa Avelina, there aren't facilities to stop, eat and drink.
If staying at Meson de Vento, consider asking them to pick you up and put you down next morning at Bar Casa Avelina.