[homergz]

From Spell.cs

// Faster casting cap of 2 (if not using the protection spell) 
// Faster casting cap of 0 (if using the protection spell) 
// Paladin spells are subject to a faster casting cap of 4 
// Paladins with magery of 70.0 or above are subject to a faster casting cap of 2 
int fcMax = 2;

if ( CastSkill == SkillName.Chivalry && m_Caster.Skills[SkillName.Magery].Value < 70.0 )
	fcMax = 4;

int fc = AosAttributes.GetValue( m_Caster, AosAttribute.CastSpeed );

if ( fc > fcMax )
	fc = fcMax;

if ( ProtectionSpell.Registry.Contains( m_Caster ) )
	fc -= 2;

Not sure if this is your problem but might want to lower your magery skill below 70 and see if there is a difference.