Hi! Its almost 2 weeks now and we still cant use Exitlag on Lost Ark. Playing without Exitlag is pain in the ass mostly when running Legion Raids. So please! we all hope that it will be fix soon.
Hello and welcome to the forums @xmurasakiichigo,
Thank you for posting your feedback in regards to Exit Lag. Please note that whereas this software can be used with our game without being ban-able, it is not supported by us and therefore there are no plans to change any settings regarding this.
Here are some basic things you can try to fix connection issues in general:
1- Please verify the integrity of game with the Steam integrity check
How To run a Steam Integrity Check
2- Close other applications that may be taking up your bandwidth.
3- Switch to a wired connection.
4- Restart your router and modem.
5- Troubleshoot your firewall.
-Press Windows + R, type “firewall.cpl” into the Run window, and then press Enter.
-Click Allow an app or feature through Windows Firewall and then click Change settings.
-Look for the game in the list of allowed apps and features. If it’s present, make sure it’s checked, and that both the Private and Public columns have a check mark. If the app is missing from the list, you need to add it.
*Click Allow another app…, locate and select the app, then click Add.
*Once you’ve done that, you need to ensure that the app is checked, and that it has check marks under both the Private and Public columns.
6- Test your connection for packet loss or buffering. To test, go here and click the big Start Test button to start the test. Once the test is complete, the results are displayed.
7- Verify you are not using VPN or proxy services. (Note the use of VPN is not permitted when connecting to our servers).
I hope this helps and if not.
See you in Akesia! 
Try switching route to San Jose. It works for me. I don’t know if there are any other working route