On the input prompt of compression ratio (0 to 51) it automatically enters on entering the 2nd character. No need to press 2 digits then press enter. Now you write 2 digits and the enter is pressed automatically.

.config/lf/lfrc

@@ -85,53 +85,40 @@ cmd delete ${{
 	[ $ans = "y" ] && rm -rf -- $fx
 }}
 
-
 cmd compressvideo ${{
    clear;
    set -f;
 
-   is_mp4_already=0;
    converted_filenames=""; #notify-send variable
    converted_files_count=0; #notify-send variable
-   compressionRatio="31"; #30 is impossible to notice difference
 
-   echo "Compression Ratio? (default: 31, maximum: 50)";
-   read compressionRatio;
+   echo "Compression Rate? (default: 31, maximum: 50)";
+   read -N 2 compressionRate;
 
    #If not a number (e.g. empty), give default 31 value
-   if ! [[ $compressionRatio =~ '^[0-9]+$' ]]; then
-      compressionRatio="31"
+   if ! [[ $compressionRate =~ ^[0-5][0-9]$ ]]; then
+      compressionRate="31";
    fi
 
    for pickedFilepath in $fx; do
-      is_valid_filetype=0;
-
       #could instead use ffprobe but would get more complicated as the filetype suffix becomes unknown
       case $pickedFilepath in
          *.mp4)
-            is_valid_filetype=1 && is_mp4_already=1;;
-         *.webm)
-            is_valid_filetype=1 && is_mp4_already=0;;
-         *.mkv)
-            is_valid_filetype=1 && is_mp4_already=0;;
+		tempFilepath=$(echo "$pickedFilepath" | sed 's|.mp4|(CONVERTING).mp4|');
+		mv -f "$pickedFilepath" "$tempFilepath";
+
+		ffmpeg -i "$tempFilepath" -vcodec libx265 -crf "$compressionRate" "$pickedFilepath";
+		rm -f -- "$tempFilepath";
+		;;
+         *.webm | *.mkv)
+		newFilepath=$(echo "$pickedFilepath" | sed 's/\(.webm\|.mkv\)/.mp4/');
+		ffmpeg -i "$pickedFilepath" -vcodec libx265 -crf "$compressionRate" "$newFilepath";
+		rm -f -- "$pickedFilepath";
+		;;
+	 *)
+	   continue 1;;
       esac
 
-      if [[ $is_valid_filetype -eq 0 ]]; then
-         continue 1 ;
-      fi;
-
-      if [[ $is_mp4_already -eq 1 ]]; then
-         tempFilepath=$(echo "$pickedFilepath" | sed 's|.mp4|(CONVERTING).mp4|');
-         mv -f "$pickedFilepath" "$tempFilepath";
-
-         ffmpeg -i "$tempFilepath" -vcodec libx265 -crf "$compressionRatio" "$pickedFilepath";
-         rm -f -- "$tempFilepath";
-      else
-         newFilepath=$(echo "$pickedFilepath" | sed 's/\(.webm\|.mkv\)/.mp4/');
-         ffmpeg -i "$pickedFilepath" -vcodec libx265 -crf "$compressionRatio" "$newFilepath";
-         rm -f -- "$pickedFilepath";
-      fi
-
       ((converted_files_count=converted_files_count+1));
       converted_filenames="$converted_filenames"$'\n'"$pickedFilepath";
 
@@ -140,7 +127,7 @@ cmd compressvideo ${{
    #Notify the user of the results
    if [[ $converted_files_count -gt 0 ]]; then
       converted_filenames=$(echo "$converted_filenames" | sed 's|.*\/||');
-      notify-send "Compressed Videos($converted_files_count): $converted_filenames";
+      notify-send "Compressed Videos($converted_files_count):" "$converted_filenames";
    fi;
 }}