diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index 44f8bd8..cd67386 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -589,6 +589,25 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "crossbeam-deque"
+version = "0.8.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5181e0de7b61eb03a81e347d6dd8797bae9da5146707b51077e2d71a54ec0ceb"
+dependencies = [
+ "crossbeam-epoch",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-epoch"
+version = "0.9.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d6914041f254d6e9176c01941b21115dcfb7089e55135a35411081bd106ef3f"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.21"
@@ -894,6 +913,12 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d0881ea181b1df73ff77ffaaf9c7544ecc11e82fba9b5f27b262a3c73a332555"
 
+[[package]]
+name = "either"
+version = "1.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91622ff5e7162018101f2fea40d6ebf4a78bbe5a49736a2020649edf9693679e"
+
 [[package]]
 name = "embed-resource"
 version = "3.0.9"
@@ -2932,6 +2957,26 @@ version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "20675572f6f24e9e76ef639bc5552774ed45f1c30e2951e1e99c59888861c539"
 
+[[package]]
+name = "rayon"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb39b166781f92d482534ef4b4b1b2568f42613b53e5b6c160e24cfbfa30926d"
+dependencies = [
+ "either",
+ "rayon-core",
+]
+
+[[package]]
+name = "rayon-core"
+version = "1.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22e18b0f0062d30d4230b2e85ff77fdfe4326feb054b9783a3460d8435c8ab91"
+dependencies = [
+ "crossbeam-deque",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.5.18"
@@ -3710,6 +3755,7 @@ name = "summarum"
 version = "1.2.0"
 dependencies = [
  "chrono",
+ "rayon",
  "reqwest 0.12.28",
  "serde",
  "serde_json",
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index c71d21f..b008c06 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -20,6 +20,7 @@ serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }
 chrono = "0.4"
+rayon = "1.12.0"
 
 [profile.release]
 strip = true
diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index 4fd3982..fd2e88c 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -436,9 +436,12 @@ fn run_backups(app: AppHandle, dir: Option<String>, retention_days: u32) -> Resu
         .collect();
     snaps.sort();
     if snaps.len() > SNAPSHOT_KEEP {
-        for old in &snaps[..snaps.len() - SNAPSHOT_KEEP] {
-            fs::remove_file(old).ok();
-        }
+        use rayon::prelude::*;
+        snaps[..snaps.len() - SNAPSHOT_KEEP]
+            .par_iter()
+            .for_each(|old| {
+                fs::remove_file(old).ok();
+            });
     }
 
     // prune the deleted-sheets bin by age