fix(rn,logging) skip some logs on mobile

react/features/base/logging/reducer.js

 
 import { SET_LOG_COLLECTOR, SET_LOGGING_CONFIG } from './actionTypes';
 
+// eslint-disable-next-line
+const LOGGING_CONFIG = require('../../../../logging_config.js');
+
 /**
  * The default/initial redux state of the feature base/logging.
  *
  * }}
  */
 const DEFAULT_STATE = {
-    // eslint-disable-next-line
-    config: require('../../../../logging_config.js'),
+    config: LOGGING_CONFIG,
 
     /**
      * The log collector.
     logCollector: undefined
 };
 
+// Reduce verbosity on mobile, it kills performance.
+if (navigator.product === 'ReactNative') {
+    const RN_LOGGING_CONFIG = {
+        'modules/sdp/SDPUtil.js': 'info',
+        'modules/xmpp/ChatRoom.js': 'warn',
+        'modules/xmpp/JingleSessionPC.js': 'info',
+        'modules/xmpp/strophe.jingle.js': 'info'
+    };
+
+    DEFAULT_STATE.config = {
+        ...LOGGING_CONFIG,
+        ...RN_LOGGING_CONFIG
+    };
+}
+
 ReducerRegistry.register(
     'features/base/logging',
     (state = DEFAULT_STATE, action) => {