{"id":21659,"date":"2026-06-01T00:36:55","date_gmt":"2026-05-31T21:36:55","guid":{"rendered":"https:\/\/vpesports.com\/minecraft\/mods\/async-pack-scan\/"},"modified":"2026-06-01T00:36:55","modified_gmt":"2026-05-31T21:36:55","slug":"async-pack-scan","status":"publish","type":"mod","link":"https:\/\/vpesports.com\/minecraft\/mods\/async-pack-scan\/","title":{"rendered":"Async Pack Scan"},"content":{"rendered":"

## Note
\nThis mod no longer seems to be required as of MC 1.20.5.
\nNonetheless, interactions between mods might still cause an issue, so I will keep updating it for the time being.
\nIf you experience no lag spikes, you can safely remove this mod.<\/p>\n

## Original Description
\nIn vanilla minecraft, the list of resource packs is refreshed by scanning all possible sources synchronously.<\/p>\n

Generally, this is not a problem, but in the resource pack organizer screen, this scan is performed whenever it is resized and every twenty ticks.<\/p>\n

If another mod (such as Respackopts) hooks into the pack scan and increases its duration even slightly, this leads to major lag spikes and makes the screen near-unusable when using more than a few packs.<\/p>\n

This mod fixes that issue by moving this computation to another thread and scheduling a scan task on those events instead, drastically improving perceived performance.<\/p>\n

Since the vanilla code is designed for synchronous execution, this can cause issues like crashes in edge cases, but worked well enough in my testing.<\/p>\n

<\/p>\n

\"Suggestions<\/p>\n

<\/center><\/p>\n","protected":false},"excerpt":{"rendered":"

Speeds up the resource pack organizer screen<\/p>\n","protected":false},"featured_media":21660,"template":"","meta":{"_minecraft_slug":"async-pack-scan","_minecraft_project_id":"FuRR0tKd","_minecraft_author":"JFronny","_minecraft_license":"MIT","_minecraft_downloads":826056,"_minecraft_follows":130,"_minecraft_client_side":"required","_minecraft_server_side":"unsupported","_minecraft_storage_type":"zip","_minecraft_archive_name":"async-pack-scan.zip","_minecraft_size_bytes":1706807,"_minecraft_version_count":17,"_minecraft_updated_at":"2026-05-16T14:49:28.072010Z","_minecraft_date_created":"2023-06-29T01:50:57.404786Z","_minecraft_date_modified":"2026-03-28T17:28:48.168203Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/async-pack-scan","_minecraft_icon_attachment_id":21660,"_minecraft_imported_at":"2026-05-31T21:36:55+00:00","_minecraft_import_hash":"9c3c8398cfa9348e161ab53904d4fc2f","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[43,97,90],"mod_loader":[99],"minecraft_version":[59,60,94,101,62,37,40,41,73,74,38,78,79,80,81,82,83,167,163],"class_list":["post-21659","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-cursed","mod_category-fabric","mod_category-optimization","mod_loader-fabric","minecraft_version-1-20","minecraft_version-1-20-2","minecraft_version-1-20-4","minecraft_version-1-20-5","minecraft_version-1-21","minecraft_version-1-21-1","minecraft_version-1-21-10","minecraft_version-1-21-11","minecraft_version-1-21-2","minecraft_version-1-21-3","minecraft_version-1-21-4","minecraft_version-1-21-5","minecraft_version-1-21-6","minecraft_version-1-21-7","minecraft_version-1-21-8","minecraft_version-1-21-9","minecraft_version-26-1","minecraft_version-26-1-1","minecraft_version-26-1-2"],"yoast_head":"\nAsync Pack Scan - 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