Calculating post contents without fetching

Stopwatch elapsedTimeForExtras = new Stopwatch();
elapsedTimeForExtras.Start();
foreach (PostDtoRead_1 post in posts_onepage)
{
    //remove if the chapters are not published
    //Maybe I can fix this from the root later
    if (post.chapters != null && post.chapters.Count() > 0)
        post.chapters = post.chapters.Where(c => c.IsPublished == true).ToList();
    
    //Get comment and reply count
    var commentIds = _db.Comments
        .Where(x => x.targetPostId == post.id &&
                x.deletedStatus.body == "Default")
        .Select(x => x.id);
    var replyIds = _db.Replies
        .Where(x => commentIds.Contains(x.commentId ?? 0) &&
                x.deletedStatus.body == "Default")
        .Select(x => x.id);
    post.comRepLength = commentIds.Count() + replyIds.Count();

    //Get the sum of words in chapters of the post
    char[] wordSeparator = new char[] {' ', '\r', '\n' };
    var chbodyList = _db.Chapters
        .Where(x => x.postId == post.id &&
                x.deletedStatus.body == "Default" &&
                x.isPublished == true)
        .Select(x => x.body);
    foreach(string? chbody in chbodyList){
        post.wordsLength += chbody != null
            ? chbody.Split(wordSeparator, StringSplitOptions.RemoveEmptyEntries).Length : 0;
    }

    //check vote by user
    if (userId != null)
    {
        Vote? checkVoteByUser = await _db.Votes.SingleOrDefaultAsync(v =>
            v.accountId == userId &&
            v.targetPostId == post.id);
        if (checkVoteByUser != null)
            post.VotedByUser = checkVoteByUser.body;
    }
}
elapsedTimeForExtras.Stop();

Stopwatch elapsedTimeForExtras = new Stopwatch();
elapsedTimeForExtras.Start();
foreach (PostDtoRead_1 post in posts_onepage)
{
    //remove if the chapters are not published
    //Maybe I can fix this from the root later
    if (post.chapters != null && post.chapters.Count() > 0)
        post.chapters = post.chapters.Where(c => c.IsPublished == true).ToList();
    
    //Get comment and reply count
    var commentIds = _db.Comments
        .Where(x => x.targetPostId == post.id &&
                x.deletedStatus.body == "Default")
        .Select(x => x.id);
    var replyIds = _db.Replies
        .Where(x => commentIds.Contains(x.commentId ?? 0) &&
                x.deletedStatus.body == "Default")
        .Select(x => x.id);
    post.comRepLength = commentIds.Count() + replyIds.Count();

    //Get the sum of words in chapters of the post
    char[] wordSeparator = new char[] {' ', '\r', '\n' };
    var chbodyList = _db.Chapters
        .Where(x => x.postId == post.id &&
                x.deletedStatus.body == "Default" &&
                x.isPublished == true)
        .Select(x => x.body);
    foreach(string? chbody in chbodyList){
        post.wordsLength += chbody != null
            ? chbody.Split(wordSeparator, StringSplitOptions.RemoveEmptyEntries).Length : 0;
    }

    //check vote by user
    if (userId != null)
    {
        Vote? checkVoteByUser = await _db.Votes.SingleOrDefaultAsync(v =>
            v.accountId == userId &&
            v.targetPostId == post.id);
        if (checkVoteByUser != null)
            post.VotedByUser = checkVoteByUser.body;
    }
}
elapsedTimeForExtras.Stop();