@sandys Setting tRCDWR lower than tRCDRD doesn't really have an impact on performance, you can just have them both at 17. Setting tRAS too low can have a latency impact, so go for tRAS = tCL + tRCDRD +2 or +4. tRC can be tRAS + 20. You can lower tRRDS to 4 and tFAW to 16, E-die seems to be able to do tRRDS-tRRDL-tFAW of 4-6-16 fairly easily. Lower tWTRS to 4, you can lower tWR to 14, tRTP to 12, tRDWR to 9 or 8, and tCKE to 1. Don't forget to disable Power Down Mode too, that saves you some latency.