Firstly ensure you would have a powerful computer as this is a basis of how your platform and other running programs will run.

1. have a dedicated streamxy line or fiber that will ensure stable connectivity

2. Ensure you have adequate memory installed on your system for your daily trading needs

3. Run only necessary items during computer startup, disable those not required. these remain in memory background even though there is no icon in the notification area.

4. Configure your browser by
a. configuring your broker site as trusted site
b. disable all unused or non required add-ons
*tip to only use your browser eg: IE for trading, other like Firefox or Google for browsing and other activities. You could configure IE with the minimum configurations to take advantage

5. Configure your firewall to allow
a. IE as your browser
b. Java & JVM

6. Configure Java to use direct connection, and optimize Java for better performance.

Any other highlights please do let me know, we'll discuss this here

Cheers
Cals