diff --git a/roles/db/files/conf/z90-vn.cnf b/roles/db/files/conf/z90-vn.cnf
index c7db964..6856ddd 100644
--- a/roles/db/files/conf/z90-vn.cnf
+++ b/roles/db/files/conf/z90-vn.cnf
@@ -34,7 +34,7 @@ table_open_cache                            = 50000
 table_definition_cache                      = 10000
 table_open_cache_instances                  = 1
 key_buffer_size                             = 256K
-max_heap_table_size                         = 128M
+max_heap_table_size                         = 512M
 tmp_table_size                              = 128M
 concurrent_insert                           = ALWAYS
 group_concat_max_len                        = 10000
@@ -54,7 +54,6 @@ transaction-isolation                       = READ-COMMITTED
 idle_transaction_timeout                    = 60
 innodb_io_capacity                          = 100
 innodb_io_capacity_max                      = 100
-innodb_monitor_enable                       = all
 innodb_read_io_threads                      = 16
 innodb_write_io_threads                     = 16
 innodb_checksum_algorithm                   = crc32
@@ -89,10 +88,17 @@ query_cache_limit                           = 0
 query_cache_type                            = OFF
 query_cache_size                            = 0
 
-#++++++++++++++++++++++++++++++++++++++++ Performance Schema
 
+
+#++++++++++++++++++++++++++++++++++++++++ Performance Schema & PMM
+
+innodb_monitor_enable                                      = all
 performance_schema                                         = ON
 performance_schema_digests_size                            = 20000
 performance-schema-consumer-events-statements-history      = ON
 performance_schema_consumer_events_statements_history_long = ON
+performance-schema-instrument                              = 'statement/%=ON'
+performance-schema-consumer-statements-digest              = ON
 userstat                                                   = ON
+plugin_load_add                                            = query_response_time
+query_response_time_stats                                  = ON