If you have a old and slow machine, use the Opera Browser. Its the fastest and best browser at time to play WGT.
Install:
CCleaner, to kick out the old data. And cache is free, for the next match. A taken cache method affecting the next match. Also the pop_ups.
Ad Block Plus take your browser cleaner. And stabilized the download rate.
Check the browser with a good Firewall. Kaspersky is the famest on the market. With Kaspersky you can have a look to weaknesses on the browser.
Search for Model updats. Very importend that the driver and tools are working in the best option you can have.
Check your hard disc, if they are only the programms and drivers working you need.
Good luck and fun on WGT .
Gr. Cad61