Drop in performance with wildcards %s, %t, %[ ], %r

[aznowak]

I am using --brainwallet --passwordlist mode (millions of passwords pre generated). With my Ryzen 9 processor, with text passwords without wildcards, I am achieving performance 290kP/s and CPU temp 68°C. I am getting very similar numbers (280 kP/s, 72°C) when I use wildcards that are alphanumeric characters (%a, %d, %d%a, %2d). The stats are much worse when I try using wildcards for other characters. Please see my stats below. Any way to overcome this drop in performance?

• %s%s - 90kP/s and CPU temp 84°C
• %2s - 125kP/s and CPU temp 81°C
• %[ ] - 125kP/s and CPU temp 80°C
• %d%s - 210kP/s and CPU temp 80°C

This is interesting (I've double checked it)...

• %W - 262kP/s and CPU temp 72°C
• %w - 235kP/s and CPU temp 74°C
• %P - 288kP/s and CPU temp 68°C