Saitama's speed in the manga is incredibly fast. It's hard to put a specific number on it, but he can cover great distances in no time and react with lightning speed to any threat.
The release of Saitama manga isn't fast. It could take a while for each new volume or chapter to be available. This could be due to a number of factors like the complexity of the art or story planning.
Manga Saitama's progress speed is hard to define precisely. It can be rapid in intense moments but might slow down to flesh out details and relationships in different parts of the story.
Saitama's strength in the manga is basically off the charts. He has no known limits and can take down any foe with ease. His power seems almost invincible.
Saitama's strength in the manga is off the charts. He has no known limits and can overcome any challenge with ease. His power is so overwhelming that it often makes battles anticlimactic.
Saitama is a very powerful hero in the One Punch Man universe. He can defeat any opponent with just one punch. He has a simple appearance and a somewhat laid - back personality.
One way is to explore his life before he became a hero. Maybe he had a normal job and was constantly frustrated with the mundanity of it. This could have been the catalyst for his intense training.