Those look like light FP strikes on the primers.................likely a gummed up FP spring & FP channel. It doesn't take much to reduce the force to what you are seeing.
Take it apart & clean it thoroughly including the spring & use a pipe cleaner to clean the FP channel from end to end.
Lightly oil after cleaning.
If that doesn't fix it, then you could have a bad (soft) FP spring.
MM
