diff --git a/.env.example b/.env.example
index 5f1d41a..35889e1 100644
--- a/.env.example
+++ b/.env.example
@@ -16,7 +16,7 @@ OPENWEBUI_AUTO_FIX_METADATA=1
 # Media normalisation
 MEDIA_NORMALIZE=1
 MEDIA_NORMALIZE_KEEP_ORIGINAL=0
-VIDEO_NORMALIZE_CODEC=hevc
+VIDEO_NORMALIZE_CODEC=h264_nvenc
 VIDEO_NORMALIZE_EXTENSION=.mp4
 VIDEO_NORMALIZE_CRF=28
 VIDEO_NORMALIZE_PRESET=medium
@@ -43,6 +43,7 @@ WHISPER_MODEL=large-v3
 WHISPER_PRECISION=int8
 # Threads for CPU inference
 WHISPER_CPU_THREADS=4
+WHISPER_BEAM_SIZE=1
 
 # --- GPU (CUDA) optional setup ---
 # To enable NVIDIA GPU acceleration:
diff --git a/docker-compose.yml b/docker-compose.yml
index 0cdbc55..29b5a00 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -25,7 +25,7 @@ services:
       OPENWEBUI_METADATA_TEMPLATE_JSON: ${OPENWEBUI_METADATA_TEMPLATE_JSON:-}
       MEDIA_NORMALIZE: ${MEDIA_NORMALIZE:-1}
       MEDIA_NORMALIZE_KEEP_ORIGINAL: ${MEDIA_NORMALIZE_KEEP_ORIGINAL:-0}
-      VIDEO_NORMALIZE_CODEC: ${VIDEO_NORMALIZE_CODEC:-hevc}
+      VIDEO_NORMALIZE_CODEC: ${VIDEO_NORMALIZE_CODEC:-h264_nvenc}
       VIDEO_NORMALIZE_EXTENSION: ${VIDEO_NORMALIZE_EXTENSION:-.mp4}
       VIDEO_NORMALIZE_CRF: ${VIDEO_NORMALIZE_CRF:-28}
       VIDEO_NORMALIZE_PRESET: ${VIDEO_NORMALIZE_PRESET:-medium}
@@ -76,6 +76,7 @@ services:
       WHISPER_PRECISION: ${WHISPER_PRECISION:-int8}
       WHISPER_DEVICE: ${WHISPER_DEVICE:-cpu}
       WHISPER_CPU_THREADS: ${WHISPER_CPU_THREADS:-4}
+      WHISPER_BEAM_SIZE: ${WHISPER_BEAM_SIZE:-1}
       WHISPER_LOG_SEGMENTS: ${WHISPER_LOG_SEGMENTS:-1}
       WHISPER_RESUME: ${WHISPER_RESUME:-1}
       WHISPER_PARTIAL_SAVE_EVERY_SEGS: ${WHISPER_PARTIAL_SAVE_EVERY_SEGS:-20}