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在更新里有说可以通过超频SH4来实现速度的调整，在玩生化的时候研究了一下发现果真有效，而且竟然会有10帧增幅。在帮助文件里有说
The "CPU 100" displays the current speed of the SH4, the main CPU in the dreamcast console. Since Chankast v0.2, you have the possibility to overclock and underclock the CPU to affect the emulation speed during gameplay with the following keys:
+ Overclock the SH4
- Undercolock the SH4
The clock speed ranges from 50% up to any value you can imagine. If you have a slow PC, you might gain some speed if you underclock the CPU slightly. Faster PCs can get more FPS than the actual dreamcast by increasing the clock rate - useful by getting past slowdowns or other stuff.
快的机器可以通过提升SH4的频率来得到更多画面帧使动作更平滑，慢的机器可以降低SH4的频率来加快速度。
在生化危机里把SH4降到50，明显的能感觉到速度变快了，但动作还是很流畅没有出现跳格的现象，总体跟移植到PC上的游戏差不多。
调到50有40帧
