Regarding your question at the end, I think consistency in both time and quality is a bit more important than having, like, a perfect translation or constant uploads, you know? No matter if its, like, "1 star quality every other day," "3 star quality every week," "4 star quality every month," or even "5 star quality every two months," they're all preferable to "yeah, the next chapter will come out whenever." (And you can always go back and fix issues in a chapter afterwards if you need to.)
'Cause, ultimately, "fast" and "quality" both have their benefits. The former'll get us caught up quicker, which can potentially let you get into pace with the official schedule, as well. And the latter'll obviously result in a better reading experience per chapter.
Ultimately, you're the translator, so this is your decision. (Oh, but while you're reading this, maybe consider less obtrusive watermarks? Inserting them into the image (such as on p44) is a bit much. And full color can be a kind of distracting at times.)
Anyways.
Really? Everyone just accepted it as suicide? Not a single police officer, medical examiner, coroner, funeral home worker, etc noticed or pointed out that he was hit in the head from behind with a baseball bat?
Looking back at the last chapter, there doesn't actually seem to be anything indicating the cause of death. So I'm not really sure where you're getting "hit on the head from behind with a baseball bat." There's no real indication of that, though I can kind of see where you're getting the impression.
I think you've ended up conflating the murder with the scene of Kaede being attacked the night before. The problem with that is, after being attacked, when Kaede wakes back up in Yuka's body, he receives a text message from her, sent from his own phone. This includes a picture of her in his body. While this could be faked, with the picture having been taken some other day, it still suggests the possibility that she was not dead yet. The fact that the police don't point towards the attack as the cause of death seems to corroborate this.
Something else to keep in mind is that the warehouse she was seems to be a safehouse she created. There's a change of clothes, water, heaters, and backpack. Not the sort of place you just dump a body, is it? And the message she sent Kaede seems to indicate that she knew there was some kind of danger as well, as she told him to "stay inside the house all day." Presumably, she woke up after being knocked out, noticed the pain in her (his?) head as well as the fact that he had been passed out in the middle of the street and realized "oh damn, someone just tried to kill me / him."
While, again, this could of course be faked, does that really make sense? Yuka just happened to have taken a selfie while in his body. (And we know that it couldn't have been Kaede, as his impression of it being "funny" seems to suggest that it's not the sort of picture he would take of himself.) The culprit decided to warn Kaede and tell him to stay somewhere where they could not reach him. The warehouse they used just happened to be one someone was living in.
And then on top of all that, the police don't point to traumatic head injury as the cause of death.
Does that make sense? It could happen, sure, but it definitely seems unlikely to me. The facts seem to fit the narrative of "Yuka woke up on the street, realized someone had attacked Kaede, went home to get supplies, then went into hiding in an old warehouse, where the culprit found her and killed her."
And if she was already cornered in a warehouse that she had entered willingly, there's no reason for the culprit to physically attack her, especially as that would make it difficult to frame the death as a suicide.
The only point remaining is that the bump probably had a high chance of still being there when the body was found. If it was hard enough to knock him out, well, then it should last, right?
I imagine that it was probably fairly clear that the bump was a day old at the time of death, and the surrounding circumstances make it fairly clear that she was on the move. If the police know that she was moving around, and they know when Kaede acquired the injury, then I don't think it's too much of a stretch to think that they would conclude "the injury and the death are unrelated."
Maybe that's a sign of incompetence, but, well, it's just the city police. Just ruling it a suicide is easier for them than investigating it as a murder. And from what I know of Japanese law, a suicide note is treated as a pretty damning piece of evidence for a death being suicide, even if they are easy to fake. Like, it's more of an indicator of suicide than anything else.
Plus, only the people at the funeral saying it might be a suicide right now. The news report just said "he's dead" and "police are investigating." It's possible that the police
are investigating it as a murder right now, and they just haven't declared it as such because they aren't sure. You don't necessarily want to tell the family "your son has been murdered!" then turn around like "oh, actually, nevermind, it really was a suicide." I do think that they probably should have told the family if they hadn't ruled it a suicide yet, but who knows, maybe they did and the family just read the fake note and reached the suicide conclusion on their own.
Could also just be police corruption and they're taking bribes, who knows.