Hello Julien,

Currently it is not possible to remove the custom filters but you can edit the file /components/com_easysocial/themes/wireframe/dashboard/default/default.php and remove the following codes,

			<div class="es-side-widget" data-section data-type="custom-filters">

				<?php echo $this->html('widget.title', 'COM_EASYSOCIAL_CUSTOM_FILTERS'); ?>



				<div class="es-side-widget__bd">



					<ul class="o-tabs o-tabs--stacked" data-section-lists>

						<?php if ($filterList && count($filterList) > 0) { ?>



							<?php foreach ($filterList as $filter) { ?>

							<li class="o-tabs__item <?php echo $filterId == $filter->id ? ' active' : '';?>" class="o-tabs__item" data-filter-item data-type="custom" data-id="<?php echo $filter->id; ?>" data-stream-identifier="<?php echo $stream->getIdentifier(); ?>">





								<a href="<?php echo ESR::dashboard(array('type' => 'filter', 'filterid' => $filter->getAlias()));?>" class="o-tabs__link">

									<?php echo $filter->_('title'); ?>

								</a>

								<div class="o-loader o-loader--sm"></div>

							</li>



							<?php } ?>

						<?php } ?>

					</ul>

					<?php if (!$filterList) { ?>

					<div class="es-side-widget__filter">

						<div class="t-text--muted" data-filter-empty>

							<?php echo JText::_('COM_EASYSOCIAL_NO_CUSTOM_FILTERS_AVAILABLE'); ?>

						</div>

					</div>

					<?php } ?>

					<div class="es-side-widget__filter">

						<a href="<?php echo ESR::dashboard(array('type' => 'filterForm')); ?>" class="btn btn-es-default btn-xs t-lg-mt--sm" data-create-filter>

							<div class="o-loader o-loader--sm"></div>

							+ <?php echo JText::_('COM_EASYSOCIAL_DASHBOARD_FEED_ADD_FILTER'); ?>

						</a>

					</div>

				</div>

			</div>

As for the photo albums and videos, these are actually widgets. You can search for these apps in EasySocial apps section and edit the app. Then, disable the widgets.