🚀 perf: Performance and Memory optimization

.env.example

@@ -1,12 +1,7 @@
 HOST=0.0.0.0
 PORT=22
 
-# Generation settings
-# Stored frame resolution in pixels. Higher = sharper but bigger .tsf files.
-# regenerate your frames after changing it.
-FRAME_RESOLUTION=512
-
-# Playback settings.
+# Playback settings
 # Playthroughs before the session is closed (0, unlimited).
 MAX_LOOP=5
 # Whether to keep looping the same frame set or pick a random one after each
@@ -30,7 +25,13 @@ INVERT=false
 FORCE_GRAYSCALE=false
 
 # Max rendered width/height in characters.
-MAX_DIMENSION=1080
+MAX_DIMENSION=512
+
+# Memory budget in MB for the rendered-frame cache (0 disables caching).
+RENDER_CACHE_MB=256
+
+# Go soft memory limit; set below your container limit to avoid OOM kills.
+GOMEMLIMIT=1GiB
 
 # Connection limits. New connections over a limit are dropped immediately.
 # Max simultaneous connections from a single client IP.