diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryScreenModel.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryScreenModel.kt
index 88aca4485..b78a37398 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryScreenModel.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryScreenModel.kt
@@ -190,7 +190,7 @@ class LibraryScreenModel(
                 // KMK <--
                 getLibraryItemPreferencesFlow(),
             ) { (searchQuery, categories, favorites), (tracksMap, trackingFilters), (includedCategories, excludedCategories), itemPreferences ->
-                val showSystemCategory = favorites.any { it.libraryManga.categories.contains(0) }
+                val showSystemCategory = favorites.fastAny { it.libraryManga.categories.contains(0) }
                 val filteredFavorites = favorites
                     .applyFilters(
                         tracksMap,
@@ -345,7 +345,7 @@ class LibraryScreenModel(
                 // SY <--
                 *trackFilters.values.toTypedArray(),
             )
-                .any { it != TriState.DISABLED } ||
+                .fastAny { it != TriState.DISABLED } ||
                 // KMK -->
                 prefs.filterCategories
             // KMK <--
@@ -518,7 +518,7 @@ class LibraryScreenModel(
         val filterFnCategories: (LibraryItem) -> Boolean = categories@{ item ->
             if (!filterCategories) return@categories true
 
-            val mangaCategories = item.libraryManga.categories.filterNot { it == 0L }.toSet()
+            val mangaCategories = item.libraryManga.categories.fastFilterNot { it == 0L }.toSet()
 
             // Early return
             if (mangaCategories.isEmpty()) {
@@ -567,9 +567,9 @@ class LibraryScreenModel(
                         groupCache.getOrPut(categoryId) { mutableListOf() }.add(item.id)
                     }
                 }
-                return categories.filter { showSystemCategory || !it.isSystemCategory }
+                return categories.fastFilter { showSystemCategory || !it.isSystemCategory }
                     // KMK -->
-                    .filterNot { !showHiddenCategories && it.hidden }
+                    .fastFilterNot { !showHiddenCategories && it.hidden }
                     // KMK <--
                     .associateWith {
                         groupCache[it.id]?.toList()
@@ -1343,7 +1343,7 @@ class LibraryScreenModel(
         lastSelectionCategory = null
         mutableState.update { state ->
             val newSelection = state.selection.mutate { list ->
-                state.getItemsForCategoryId(state.activeCategory?.id).map { it.id }.let(list::addAll)
+                state.getItemsForCategoryId(state.activeCategory?.id).fastMap { it.id }.let(list::addAll)
             }
             state.copy(selection = newSelection)
         }
@@ -1382,7 +1382,7 @@ class LibraryScreenModel(
 
             // Hide the default category because it has a different behavior than the ones from db.
             // KMK -->
-            val categories = state.value.libraryData.categories.filter { it.id != 0L }
+            val categories = state.value.libraryData.categories.fastFilter { it.id != 0L }
             // KMK <--
 
             // Get indexes of the common categories to preselect.
@@ -1390,7 +1390,7 @@ class LibraryScreenModel(
             // Get indexes of the mix categories to preselect.
             val mix = getMixCategories(mangaList)
             val preselected = categories
-                .map {
+                .fastMap {
                     when (it) {
                         in common -> CheckboxState.State.Checked(it)
                         in mix -> CheckboxState.TriState.Exclude(it)
@@ -1436,7 +1436,7 @@ class LibraryScreenModel(
                 // KMK -->
                 val groupCache = mutableMapOf</* Track.status */ Int, MutableList</* LibraryItem */ Long>>()
                 forEach { item ->
-                    val statuses = tracks[item.libraryManga.manga.id]?.mapNotNull { track ->
+                    val statuses = tracks[item.libraryManga.manga.id]?.fastMapNotNull { track ->
                         TrackStatus.parseTrackerStatus(trackerManager, track.trackerId, track.status)
                     }
                         ?.takeIf { it.isNotEmpty() }
@@ -1675,7 +1675,7 @@ class LibraryScreenModel(
         }
 
         val showAddToMangadex: Boolean by lazy {
-            selectedManga.any { it.source in mangaDexSourceIds }
+            selectedManga.fastAny { it.source in mangaDexSourceIds }
         }
 
         val showResetInfo: Boolean by lazy {
@@ -1698,7 +1698,7 @@ class LibraryScreenModel(
         }
 
         fun getItemsForCategory(category: Category): List<LibraryItem> {
-            return groupedFavorites[category].orEmpty().mapNotNull { libraryData.favoritesById[it] }
+            return groupedFavorites[category].orEmpty().fastMapNotNull { libraryData.favoritesById[it] }
         }
 
         fun getItemCountForCategory(category: Category): Int? {