A.T. Robertson Commentary Luke 5:15

"But so much the more went abroad the report concerning him: and great multitudes came together to hear, and to be healed of their infirmities." — Luke 5:15 (ASV)

So much the more (μαλλον). Mr 1:45 has only "much" (πολλα, many), but Mark tells more about the effect of this disobedience.

Went abroad (διηρχετο). Imperfect tense. The fame of Jesus kept going.

Came together (συνηρχοντο). Imperfect tense again. The more the report spread, the more the crowds came.