If you want to gain more readers I would advise you to post more than one chapter at the start and then continue releasing for the next days. The first batch of readers generates through the new releases section. Readers scan this, looking for new stories. However, they're often apprehensive. Many authors only post the first or first three chapters and then stop. If you show them that you're going beyond this line they gain some trust that you won't leave them hanging after fixing them. You wouldnt believe how many stop for some reason after posting the first chapter. Naturally not post everything at once. It's better to wait each a day after the first three chapters and post one a day for a week (3 is a solid starting point to fix them. Though, it depends on general chapter length.). After this, you can go to a manageable schedule, like a week. You should communicate this.
I can't tell if this is perfectly going to work out since there are many factors for this, but you shouldn't underestimate the power of attention you solely gain by being newly released. I managed to get a solid hundred readers at the start which kept increasing while seeing many good stories never passing that threshold (attention gains attention).