For following configuration elements, labels are confused and should be precised : 

• Taille des descriptions : I suggest : "Nombre maximum de caractères utilisé pour les notifications". 
• Nombre d'éléments : it is not precised that it's for workspaces request. I suggest to add this precision. 
• Two words ""requête" and "flux") are used in label and tooltips, I think it should be better to use a single word