Many FT225-users quickly realize that the AGC is to slow, especially if you are interested in meteorscatter, MS. The AGC can be set into fast- or slow-mode, both modes are to slow for good MS-reception.
The solution is simple. The AGC-circuit is in the "SSB IF-unit" and the delay is set by one or two capacitors depending on the chosen delay, see schematic. Normally, at fast AGC, both C23 and C22 are connected, ie in series. This means that the resulting capacitance is less than in slow AGC where only C22 is connected. (C23 is then short-circuited to ground.)