diff --git a/config/default_files/config/modernfix-mixins.properties b/config/default_files/config/modernfix-mixins.properties
index d838016..8c2b073 100644
--- a/config/default_files/config/modernfix-mixins.properties
+++ b/config/default_files/config/modernfix-mixins.properties
@@ -92,3 +92,7 @@
 # User overrides go here.
 mixin.perf.dynamic_resources=true
 mixin.perf.faster_item_rendering=true
+mixin.perf.clear_mixin_classinfo=true
+mixin.perf.dynamic_entity_renderers=true
+mixin.perf.deduplicate_climate_parameters=true
+mixin.bugfix.packet_leak=true
diff --git a/index.toml b/index.toml
index 9b74e68..67297a0 100644
--- a/index.toml
+++ b/index.toml
@@ -18,7 +18,7 @@ hash = "7564aee7b7bf3477b71532d3fda3223c5455182d6b516850887184c4412e8c3d"
 
 [[files]]
 file = "config/default_files/config/modernfix-mixins.properties"
-hash = "ce9652414402ba3ff191fe7ebe9c45f83816535997c77bdfbea6040239391cba"
+hash = "293506d5e08af9ffcede7cf765c2f13f2e92cbec82051a159c5028c1971985a2"
 
 [[files]]
 file = "config/default_files/config/toadlib_config.txt"
diff --git a/pack.toml b/pack.toml
index 07e5c5f..4722d7b 100644
--- a/pack.toml
+++ b/pack.toml
@@ -6,7 +6,7 @@ pack-format = "packwiz:1.1.0"
 [index]
 file = "index.toml"
 hash-format = "sha256"
-hash = "2c861a3cac16b9c001e8dd71be80fb11dae63039372986b8204d1442bcfec991"
+hash = "23b61ad70cfa1628d578deee83f804448f5c0a723e2c91da649b67da28d6be13"
 
 [versions]
 minecraft = "1.21.1"