Hi  @medmars Try to add :

<field name="limit">100</field>

in your action (XML file).

Try Following,

for example,

<record id="action_your_object_form" model="ir.actions.act_window">
    <field name="name">Your Object Name</field>
    <field name="type">ir.actions.act_window</field>
    <field name="res_model">your.object</field>
    <field name="view_type">form</field>
    <field name="limit">100</field>
    <field name="view_mode">tree,form</field>
</record>

Hope this work for you.