Russia's problems were not military,
Well, if we look at all those Russian victories in WWI
they were social and economic. Yes, Russia was industrializing, but at an alarming rate. People were literally thrown off there ancestral lands if they didn't produce enough food, forcing them into the cities. The cities became overcrowded and the workplace conditions were absolutely horrendous.
Now, where's the difference to industrialization as it happened in the UK? Or in Germany? Or nowadays in China? Strikes, turmoil, granted. But overthrowing the csar by a bunch of communists? No way, this required WW1 to happen.