message: Improve performance for add slice container
diff: @@ -31,7 +31,7 @@ const propTypes = {
  })).isRequired,
  };
  -const styleSelectWidth = { width: 300 };
  +const styleSelectWidth = { width: 600 };
  export default class AddSliceContainer extends React.PureComponent {
  constructor(props) {
  @@ -83,18 +83,19 @@ export default class AddSliceContainer extends React.PureComponent {
  <div style={styleSelectWidth}>
  <Select
  clearable={false}
  - style={styleSelectWidth}
  + ignoreAccents={false}
  name="select-datasource"
  onChange={this.changeDatasource}
  options={this.props.datasources}
  placeholder={t('Choose a datasource')}
  + style={styleSelectWidth}
  value={this.state.datasourceValue}
  - width={200}
  + width={600}
  />
  </div>
  <p className="text-muted">
  {t(
  - 'If the datasource your are looking for is not ' +
  + 'If the datasource you are looking for is not ' +
  'available in the list, ' +
  'follow the instructions on the how to add it on the ')}
  <a href="https://superset.apache.org/tutorial.html">{t('Superset tutorial')}</a>
  