However, "extra quality" firmware cannot create new hardware. If your throughput demands exceed 500 Mbps with all security features enabled, it is time to migrate to a FortiGate 80F or 100F.
To maintain the highest security and performance for a legacy 200D unit: How To Upgrade FortiGate Firewall Firmware? fortigate 200d latest firmware extra quality
Would you like a or a migration checklist from FG-200D to a modern FortiGate model? However, "extra quality" firmware cannot create new hardware