diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index 8430bb77..e670edae 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -1311,8 +1311,10 @@ dependencies = [
  "derivative",
  "diesel",
  "futures-util",
+ "governor",
  "lazy_static",
  "log",
+ "nonzero_ext",
  "oauth2",
  "once_cell",
  "pgn-reader",
@@ -1608,6 +1610,21 @@ dependencies = [
  "new_debug_unreachable",
 ]
 
+[[package]]
+name = "futures"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "645c6916888f6cb6350d2550b80fb63e734897a8498abe35cfb732b6487804b0"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
 [[package]]
 name = "futures-channel"
 version = "0.3.30"
@@ -1615,6 +1632,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "eac8f7d7865dcb88bd4373ab671c8cf4508703796caa2b1985a9ca867b3fcb78"
 dependencies = [
  "futures-core",
+ "futures-sink",
 ]
 
 [[package]]
@@ -1691,12 +1709,19 @@ version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "38d84fa142264698cdce1a9f9172cf383a0c82de1bddcf3092901442c4097004"
 
+[[package]]
+name = "futures-timer"
+version = "3.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f288b0a4f20f9a56b5d1da57e2227c661b7b16168e2f72365f57b63326e29b24"
+
 [[package]]
 name = "futures-util"
 version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d6401deb83407ab3da39eba7e33987a73c3df0c82b4bb5813ee871c19c41d48"
 dependencies = [
+ "futures-channel",
  "futures-core",
  "futures-io",
  "futures-macro",
@@ -1971,6 +1996,26 @@ dependencies = [
  "system-deps 6.2.0",
 ]
 
+[[package]]
+name = "governor"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68a7f542ee6b35af73b06abc0dad1c1bae89964e4e253bc4b587b91c9637867b"
+dependencies = [
+ "cfg-if",
+ "dashmap",
+ "futures",
+ "futures-timer",
+ "no-std-compat",
+ "nonzero_ext",
+ "parking_lot",
+ "portable-atomic",
+ "quanta",
+ "rand 0.8.5",
+ "smallvec",
+ "spinning_top",
+]
+
 [[package]]
 name = "gtk"
 version = "0.15.5"
@@ -2779,6 +2824,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "no-std-compat"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b93853da6d84c2e3c7d730d6473e8817692dd89be387eb01b94d7f108ecb5b8c"
+
 [[package]]
 name = "nodrop"
 version = "0.1.14"
@@ -2795,6 +2846,12 @@ dependencies = [
  "minimal-lexical",
 ]
 
+[[package]]
+name = "nonzero_ext"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38bf9645c8b145698bb0b18a4637dcacbc421ea49bef2317e4fd8065a387cf21"
+
 [[package]]
 name = "notify-rust"
 version = "4.10.0"
@@ -3455,6 +3512,12 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "portable-atomic"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7170ef9988bc169ba16dd36a7fa041e5c4cbeb6a35b76d4c03daded371eae7c0"
+
 [[package]]
 name = "powerfmt"
 version = "0.2.0"
@@ -3551,6 +3614,21 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "quanta"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e5167a477619228a0b284fac2674e3c388cba90631d7b7de620e6f1fcd08da5"
+dependencies = [
+ "crossbeam-utils",
+ "libc",
+ "once_cell",
+ "raw-cpuid",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+ "web-sys",
+ "winapi",
+]
+
 [[package]]
 name = "quick-xml"
 version = "0.30.0"
@@ -3677,6 +3755,15 @@ dependencies = [
  "rand_core 0.5.1",
 ]
 
+[[package]]
+name = "raw-cpuid"
+version = "11.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d86a7c4638d42c44551f4791a20e687dbb4c3de1f33c43dd71e355cd429def1"
+dependencies = [
+ "bitflags 2.4.2",
+]
+
 [[package]]
 name = "raw-window-handle"
 version = "0.5.2"
@@ -4428,6 +4515,15 @@ version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
 
+[[package]]
+name = "spinning_top"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d96d2d1d716fb500937168cc09353ffdc7a012be8475ac7308e1bdf0e3923300"
+dependencies = [
+ "lock_api",
+]
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.0"
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 9717e3d7..792f3f06 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -57,6 +57,8 @@ axum = "0.6.20"
 tar = "0.4.40"
 sysinfo = "0.29.10"
 window-shadows = "0.2.2"
+governor = "0.6.3"
+nonzero_ext = "0.3.0"
 
 [features]
 # by default Tauri runs in production mode
diff --git a/src-tauri/src/chess.rs b/src-tauri/src/chess.rs
index 89d5bc64..97138747 100644
--- a/src-tauri/src/chess.rs
+++ b/src-tauri/src/chess.rs
@@ -1,7 +1,9 @@
 use std::{fmt::Display, path::PathBuf, process::Stdio, sync::Arc, time::Instant};
 
 use derivative::Derivative;
+use governor::{Quota, RateLimiter};
 use log::{error, info};
+use nonzero_ext::*;
 use serde::{Deserialize, Serialize};
 use shakmaty::{
     fen::Fen, san::SanPlus, uci::Uci, ByColor, CastlingMode, Chess, Color, EnPassantMode, Position,
@@ -505,6 +507,8 @@ pub async fn get_best_moves(
 
     state.engine_processes.insert(key.clone(), process.clone());
 
+    let mut lim = RateLimiter::direct(Quota::per_second(nonzero!(5u32)));
+
     while let Some(line) = reader.next_line().await? {
         let mut proc = process.lock().await;
         match parse_one(&line) {
@@ -520,6 +524,7 @@ pub async fn get_best_moves(
                         if multipv == proc.real_multipv {
                             if proc.best_moves.iter().all(|x| x.depth == cur_depth)
                                 && cur_depth >= proc.last_depth
+                                && lim.check().is_ok()
                             {
                                 let progress = match proc.go_mode {
                                     GoMode::Depth(depth) => {
diff --git a/src/components/panels/analysis/BestMoves.tsx b/src/components/panels/analysis/BestMoves.tsx
index e3ad413b..dfdfc0c9 100644
--- a/src/components/panels/analysis/BestMoves.tsx
+++ b/src/components/panels/analysis/BestMoves.tsx
@@ -436,7 +436,7 @@ function BestMovesComponent({
               engineVariations.map((engineVariation, index) => {
                 return (
                   <AnalysisRow
-                    key={engineVariation.sanMoves.join(",")}
+                    key={index}
                     moves={engineVariation.sanMoves}
                     score={engineVariation.score}
                     halfMoves={halfMoves}