[Windows][Android] JP->EN Page Translation very slow and not always working

Description of the issue:
The page translation feature is a welcome one but very unreliable in Brave compared to other browsers (particularly Vivaldi which is also using Lingvanex).
It often takes at least 20-30 seconds to translate a page from Japanese to English and sometimes either only translate a few items, doesn’t translate anything or reverts to Japanese after translating the page for a very brief moment.
This behavior affects both the Desktop (Windows) and Android versions on various websites but seems significantly worse on the latter.

Steps to Reproduce (add as many as necessary): 1. 2. 3.

  1. Open Brave on Desktop or Android
  2. Make sure the translation feature is activated and set to translate to English
  3. Open a Japanese website (e.g. https://www.paypay-bank.co.jp/or https://jp.mercari.com/)
  4. Observe the time it takes for the translator to do its thing

Actual Result:
Page takes a long time (20+ seconds) to translate, or doesn’t translate at all.

Expected result:
Page in Japanese gets translated in less than 5 seconds (ideally no more than 2-3 seconds on average).

Reproduces how often:
All the time

Operating System and Brave Version(See the About Brave page in the main menu):
Windows 11 - Brave 1.59.124, Chromium 118.0.5993.117
Android 13 - Brave 1.59.120, Chromium 118.0.5993.88

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