This is an example abstraction for TextField MUI slowness to convert your onChange callers to set parent state onBlur instead and keep state local to render the individual textbox component

gistfile1.txt

import MUIField from 'material-ui/TextField'; 
import React, {Component} from 'react';


class TextField extends Component {
  constructor(props, context) {
    super(props, context);
    this.state = {
      value: props.value || props.defaultValue
    };
  }

  render() {
    let props = {};
    Object.keys(this.props).forEach((k) => {
      if (k !== "onChange" && k !== "value" && k !== "defaultValue") {
        props[k] = this.props[k];
      }
    });
    return <MUIField
      {...props}
      value={this.state.value}
      onChange={(e) => {
        this.setState({value: e.target.value});
      }}
      onBlur={() => {
        this.props.onChange({
          target: {
            value: this.state.value
          }
        });
      }}/>
  }
}
export default TextField;

Note I am mimicking the event object on the response so you dont have to update your callers who may have had an onChange event will merely get the new value onBlur to prevent re-renders every keystroke.