diff --git a/back/Dockerfile b/back/Dockerfile
index dbf3ae5..d048dfe 100644
--- a/back/Dockerfile
+++ b/back/Dockerfile
@@ -49,7 +49,15 @@ RUN echo "opcache.enable=1" >> /usr/local/etc/php/conf.d/opcache.ini \
 
 # PHP production settings
 RUN echo "upload_max_filesize=20M" >> /usr/local/etc/php/conf.d/uploads.ini \
-    && echo "post_max_size=25M" >> /usr/local/etc/php/conf.d/uploads.ini
+    && echo "post_max_size=25M" >> /usr/local/etc/php/conf.d/uploads.ini \
+    && echo "memory_limit=128M" >> /usr/local/etc/php/conf.d/uploads.ini \
+    && echo "max_execution_time=60" >> /usr/local/etc/php/conf.d/uploads.ini
+
+# PHP-FPM pool settings para 100 usuarios concurrentes
+RUN sed -i 's/pm.max_children = 5/pm.max_children = 15/' /usr/local/etc/php-fpm.d/www.conf \
+    && sed -i 's/pm.start_servers = 2/pm.start_servers = 5/' /usr/local/etc/php-fpm.d/www.conf \
+    && sed -i 's/pm.min_spare_servers = 1/pm.min_spare_servers = 3/' /usr/local/etc/php-fpm.d/www.conf \
+    && sed -i 's/pm.max_spare_servers = 3/pm.max_spare_servers = 10/' /usr/local/etc/php-fpm.d/www.conf
 
 WORKDIR /var/www/html
 
diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index faa3617..8ed10fa 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -3,6 +3,7 @@ services:
     image: nginx:alpine
     container_name: admision_prod_nginx
     restart: unless-stopped
+    mem_limit: 64m
     ports:
       - "127.0.0.1:${APP_PORT:-8080}:80"
     volumes:
@@ -18,6 +19,7 @@ services:
     image: ghcr.io/${GITHUB_REPO:-usuario/repo}/backend:${IMAGE_TAG:-latest}
     container_name: admision_prod_backend
     restart: unless-stopped
+    mem_limit: 1g
     env_file:
       - .env.prod
     volumes:
@@ -38,6 +40,7 @@ services:
     image: ghcr.io/${GITHUB_REPO:-usuario/repo}/frontend:${IMAGE_TAG:-latest}
     container_name: admision_prod_frontend
     restart: unless-stopped
+    mem_limit: 64m
     networks:
       - admision_net
 
@@ -45,6 +48,7 @@ services:
     image: mysql:8.0
     container_name: admision_prod_db
     restart: unless-stopped
+    mem_limit: 512m
     ports:
       - "127.0.0.1:3306:3306"
     environment:
@@ -52,6 +56,7 @@ services:
       MYSQL_DATABASE: ${DB_DATABASE:-admision_2026}
     volumes:
       - mysql_data:/var/lib/mysql
+      - ./mysql/my.cnf:/etc/mysql/conf.d/custom.cnf:ro
     healthcheck:
       test: ["CMD", "mysqladmin", "ping", "-h", "localhost", "-p${DB_PASSWORD}"]
       interval: 10s
diff --git a/mysql/my.cnf b/mysql/my.cnf
new file mode 100644
index 0000000..ffc4c60
--- /dev/null
+++ b/mysql/my.cnf
@@ -0,0 +1,10 @@
+[mysqld]
+# Memoria
+innodb_buffer_pool_size = 128M
+innodb_log_buffer_size  = 16M
+
+# Conexiones (suficiente para 100 usuarios)
+max_connections         = 50
+
+# Deshabilitar herramienta de diagnostico que consume ~70MB RAM innecesariamente
+performance_schema      = OFF