diff --git a/docker-compose.yml b/docker-compose.yml
index 020d360..5fc4ba1 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,7 +4,7 @@ version: "2"
 
 services:
  minetest:
-  image: buckaroobanzay/minetest:stable-5
+  image: buckaroobanzay/minetest:5.2.0-ricer
   restart: always
   ports:
    - "30000:30000/udp"
diff --git a/minetest.conf b/minetest.conf
index 78e30f7..45af537 100644
--- a/minetest.conf
+++ b/minetest.conf
@@ -139,8 +139,11 @@ active_block_range = 1
 max_block_send_distance = 10
 block_send_optimize_distance = 4
 #max_simultaneous_block_sends_server_total = 400
-max_packets_per_iteration = 2048
-max_simultaneous_block_sends_per_client = 100
+
+#default: 1024, working: 2048
+max_packets_per_iteration = 8000
+#default: 40, working: 100
+max_simultaneous_block_sends_per_client = 1000
 
 full_block_send_enable_min_time_from_building = 6.0