BnS Performance Fix

A tool to optimize game performance for Blade & Soul.

Blade & Soul's poor performance is caused by a linear-time search for text localization. The game's localization file contains about 700,000 text strings. Many of these strings are for old, outdated content. In a party or raid setting, your game might search this file thousands of times per second.

This tool will strip out unnecessary text using a filter of your choice.

Usage

The output from this tool is unsigned. You will need LeaN's SigBypasser to use it.

Download the latest release.
Find your local.dat file in your install directory.

For example, the 32-bit file for English language should be located here:

C:\Program Files (x86)\NCSOFT\BnS\contents\Local\NCWEST\ENGLISH\data\local.dat
Re-build your local.dat using a custom filter
```
.\BnsPerformanceFix.exe --filter custom.txt local.dat
```
Replace your game's local.dat with the new local-custom.dat.

Customization

Extracting local.dat

To see all the game's localization text,

Download the latest release.
Use BnsDatTool "Dat Files" tab to extract local.dat
Use BnsDatTool "Bin Files" tab to extract local.dat.files/localfile.bin

The text will be output in local.dat.files/localfile.bin.files/lookup_general.txt

It will have aliases and text for all localizations:

<alias>
Name.AccountLevel_Name_001
</alias>
<text>
1
</text>
<alias>
Name.AccountLevel_Name_002
</alias>
<text>
2
</text>
<alias>
Name.AccountLevel_Name_003
</alias>
<text>
3
</text>
...

Filter syntax

Filters listed earlier in the file take priority
Filters are case-insensitive
The * wildcard matches zero or more characters
The ? wildcard matches any 1 character
Lines beginning with # are treated as comments
Lines beginning with - are exclusions

Example filters

This filter will strip all text except those starting with the prefixes listed:

UI.*
Text.*
Name.*

This filter will delete item text and keep everything else: