Perhaos what could help is in case of use of "shield cover" no push forward allowed ( as it is now ) . it slows down the prudent attacker
That is another, but very valid topic.
I also believe that shield cover cannot be speeded/sped? up by playing the requisite card, But you could speed up if you were slowed by fire, as per normal.
Its a long standing gripe, but life moves on.
Lance.
Shield cover can be speeded up with prompt to fire PG 126 PDF version
That may also help shooty infantry