title: AG Grid tooltip takes long time to render
body: <p>I was following <a href="https://www.ag-grid.com/javascript-grid-tooltip-component/" rel="noreferrer">this example</a> and found out that the table takes quite some time to render the tooltip. It doesn't seem to have any delay whatsoever, and I have tried both defaultBrowserTooltip as well as the custom one but both of them are slow. Any given tips on this?</p>
  
  <p>P/S: I'm using React</p>
  
  <p>Some way that I have tried:</p>
  
  <pre><code>tooltipField: 'myTooltipField'
  
  tooltip: (value: string): string =&gt; value
  </code></pre>