diff --git a/client/components/app/BookShelfCategorized.vue b/client/components/app/BookShelfCategorized.vue
index f83cbae0..e2119bf8 100644
--- a/client/components/app/BookShelfCategorized.vue
+++ b/client/components/app/BookShelfCategorized.vue
@@ -85,7 +85,7 @@ export default {
     },
     async fetchCategories() {
       var categories = await this.$axios
-        .$get(`/api/libraries/${this.currentLibraryId}/categories`)
+        .$get(`/api/libraries/${this.currentLibraryId}/categories?minified=1`)
         .then((data) => {
           return data
         })
diff --git a/client/components/app/LazyBookshelf.vue b/client/components/app/LazyBookshelf.vue
index 34d6337b..57d1a46e 100644
--- a/client/components/app/LazyBookshelf.vue
+++ b/client/components/app/LazyBookshelf.vue
@@ -54,7 +54,7 @@ export default {
       pageLoadQueue: [],
       isFetchingEntities: false,
       scrollTimeout: null,
-      booksPerFetch: 250,
+      booksPerFetch: 100,
       totalShelves: 0,
       bookshelfMarginLeft: 0,
       isSelectionMode: false,
@@ -220,7 +220,7 @@ export default {
       var entityPath = this.entityName === 'books' ? `books/all` : this.entityName
       if (this.entityName === 'series-books') entityPath = `series/${this.seriesId}`
       var sfQueryString = this.currentSFQueryString ? this.currentSFQueryString + '&' : ''
-      var fullQueryString = this.entityName === 'series-books' ? '' : `?${sfQueryString}limit=${this.booksPerFetch}&page=${page}`
+      var fullQueryString = this.entityName === 'series-books' ? '' : `?${sfQueryString}limit=${this.booksPerFetch}&page=${page}&minified=1`
       var payload = await this.$axios.$get(`/api/libraries/${this.currentLibraryId}/${entityPath}${fullQueryString}`).catch((error) => {
         console.error('failed to fetch books', error)
         return null
@@ -438,7 +438,7 @@ export default {
       var entitiesPerShelfBefore = this.entitiesPerShelf
 
       var { clientHeight, clientWidth } = bookshelf
-      console.log('Init bookshelf width', clientWidth, 'window width', window.innerWidth)
+      // console.log('Init bookshelf width', clientWidth, 'window width', window.innerWidth)
       this.mountWindowWidth = window.innerWidth
       this.bookshelfHeight = clientHeight
       this.bookshelfWidth = clientWidth
diff --git a/server/controllers/LibraryController.js b/server/controllers/LibraryController.js
index 9699e202..f0963cef 100644
--- a/server/controllers/LibraryController.js
+++ b/server/controllers/LibraryController.js
@@ -124,7 +124,8 @@ class LibraryController {
       page: req.query.page && !isNaN(req.query.page) ? Number(req.query.page) : 0,
       sortBy: req.query.sort,
       sortDesc: req.query.desc === '1',
-      filterBy: req.query.filter
+      filterBy: req.query.filter,
+      minified: req.query.minified === '1'
     }
 
     if (payload.filterBy) {
@@ -147,7 +148,7 @@ class LibraryController {
       var startIndex = payload.page * payload.limit
       audiobooks = audiobooks.slice(startIndex, startIndex + payload.limit)
     }
-    payload.results = audiobooks.map(ab => ab.toJSONExpanded())
+    payload.results = audiobooks.map(ab => payload.minified ? ab.toJSONMinified() : ab.toJSONExpanded())
     res.json(payload)
   }
 
@@ -162,10 +163,11 @@ class LibraryController {
       page: req.query.page && !isNaN(req.query.page) ? Number(req.query.page) : 0,
       sortBy: req.query.sort,
       sortDesc: req.query.desc === '1',
-      filterBy: req.query.filter
+      filterBy: req.query.filter,
+      minified: req.query.minified === '1'
     }
 
-    var series = libraryHelpers.getSeriesFromBooks(audiobooks)
+    var series = libraryHelpers.getSeriesFromBooks(audiobooks, payload.minified)
     payload.total = series.length
 
     if (payload.limit) {
@@ -208,10 +210,11 @@ class LibraryController {
       page: req.query.page && !isNaN(req.query.page) ? Number(req.query.page) : 0,
       sortBy: req.query.sort,
       sortDesc: req.query.desc === '1',
-      filterBy: req.query.filter
+      filterBy: req.query.filter,
+      minified: req.query.minified === '1'
     }
 
-    var collections = this.db.collections.filter(c => c.libraryId === req.library.id).map(c => c.toJSONExpanded(audiobooks))
+    var collections = this.db.collections.filter(c => c.libraryId === req.library.id).map(c => c.toJSONExpanded(audiobooks, payload.minified))
     payload.total = collections.length
 
     if (payload.limit) {
@@ -235,28 +238,29 @@ class LibraryController {
     var library = req.library
     var books = this.db.audiobooks.filter(ab => ab.libraryId === library.id)
     var limitPerShelf = req.query.limit && !isNaN(req.query.limit) ? Number(req.query.limit) : 12
+    var minified = req.query.minified === '1'
 
     var booksWithUserAb = libraryHelpers.getBooksWithUserAudiobook(req.user, books)
-    var series = libraryHelpers.getSeriesFromBooks(books)
+    var series = libraryHelpers.getSeriesFromBooks(books, minified)
 
     var categories = [
       {
         id: 'continue-reading',
         label: 'Continue Reading',
         type: 'books',
-        entities: libraryHelpers.getBooksMostRecentlyRead(booksWithUserAb, limitPerShelf)
+        entities: libraryHelpers.getBooksMostRecentlyRead(booksWithUserAb, limitPerShelf, minified)
       },
       {
         id: 'recently-added',
         label: 'Recently Added',
         type: 'books',
-        entities: libraryHelpers.getBooksMostRecentlyAdded(books, limitPerShelf)
+        entities: libraryHelpers.getBooksMostRecentlyAdded(books, limitPerShelf, minified)
       },
       {
         id: 'read-again',
         label: 'Read Again',
         type: 'books',
-        entities: libraryHelpers.getBooksMostRecentlyFinished(booksWithUserAb, limitPerShelf)
+        entities: libraryHelpers.getBooksMostRecentlyFinished(booksWithUserAb, limitPerShelf, minified)
       },
       {
         id: 'recent-series',
diff --git a/server/objects/Audiobook.js b/server/objects/Audiobook.js
index 28fb67e7..8e42b63a 100644
--- a/server/objects/Audiobook.js
+++ b/server/objects/Audiobook.js
@@ -211,7 +211,7 @@ class Audiobook {
       ebooks: this.ebooks.map(ebook => ebook.toJSON()),
       numEbooks: this.ebooks.length,
       numTracks: this.tracks.length,
-      chapters: this.chapters || [],
+      numChapters: (this.chapters || []).length,
       isMissing: !!this.isMissing,
       isInvalid: !!this.isInvalid,
       hasMissingParts: this.numMissingParts,
diff --git a/server/objects/UserCollection.js b/server/objects/UserCollection.js
index be761d85..780b2a42 100644
--- a/server/objects/UserCollection.js
+++ b/server/objects/UserCollection.js
@@ -37,11 +37,11 @@ class UserCollection {
     }
   }
 
-  toJSONExpanded(audiobooks) {
+  toJSONExpanded(audiobooks, minifiedBooks = false) {
     var json = this.toJSON()
     json.books = json.books.map(bookId => {
       var _ab = audiobooks.find(ab => ab.id === bookId)
-      return _ab ? _ab.toJSONExpanded() : null
+      return _ab ? minifiedBooks ? _ab.toJSONMinified() : _ab.toJSONExpanded() : null
     }).filter(b => !!b)
     return json
   }
diff --git a/server/utils/libraryHelpers.js b/server/utils/libraryHelpers.js
index 11787580..10bb4af4 100644
--- a/server/utils/libraryHelpers.js
+++ b/server/utils/libraryHelpers.js
@@ -74,19 +74,20 @@ module.exports = {
     return data
   },
 
-  getSeriesFromBooks(books) {
+  getSeriesFromBooks(books, minified = false) {
     var _series = {}
     books.forEach((audiobook) => {
       if (audiobook.book.series) {
+        var abJson = minified ? audiobook.toJSONMinified() : audiobook.toJSONExpanded()
         if (!_series[audiobook.book.series]) {
           _series[audiobook.book.series] = {
             id: audiobook.book.series,
             name: audiobook.book.series,
             type: 'series',
-            books: [audiobook.toJSONExpanded()]
+            books: [abJson]
           }
         } else {
-          _series[audiobook.book.series].books.push(audiobook.toJSONExpanded())
+          _series[audiobook.book.series].books.push(abJson)
         }
       }
     })
@@ -108,25 +109,25 @@ module.exports = {
     })
   },
 
-  getBooksMostRecentlyRead(booksWithUserAb, limit) {
+  getBooksMostRecentlyRead(booksWithUserAb, limit, minified = false) {
     var booksWithProgress = booksWithUserAb.filter((data) => data.userAudiobook && data.userAudiobook.progress > 0 && !data.userAudiobook.isRead)
     booksWithProgress.sort((a, b) => {
       return b.userAudiobook.lastUpdate - a.userAudiobook.lastUpdate
     })
-    return booksWithProgress.map(b => b.book.toJSONExpanded()).slice(0, limit)
+    return booksWithProgress.map(b => minified ? b.book.toJSONMinified() : b.book.toJSONExpanded()).slice(0, limit)
   },
 
-  getBooksMostRecentlyAdded(books, limit) {
+  getBooksMostRecentlyAdded(books, limit, minified = false) {
     var booksSortedByAddedAt = sort(books).desc(book => book.addedAt)
-    return booksSortedByAddedAt.map(b => b.toJSONExpanded()).slice(0, limit)
+    return booksSortedByAddedAt.map(b => minified ? b.toJSONMinified() : b.toJSONExpanded()).slice(0, limit)
   },
 
-  getBooksMostRecentlyFinished(booksWithUserAb, limit) {
+  getBooksMostRecentlyFinished(booksWithUserAb, limit, minified = false) {
     var booksRead = booksWithUserAb.filter((data) => data.userAudiobook && data.userAudiobook.isRead)
     booksRead.sort((a, b) => {
       return b.userAudiobook.finishedAt - a.userAudiobook.finishedAt
     })
-    return booksRead.map(b => b.book.toJSONExpanded()).slice(0, limit)
+    return booksRead.map(b => minified ? b.book.toJSONMinified() : b.book.toJSONExpanded()).slice(0, limit)
   },
 
   getSeriesMostRecentlyAdded(series, limit) {