Meteor prevent re-loading data on each edit?

controller.js

// TemplateBase.inspectionOrderFromService() is inspectionService.js

Template.assemble.items = function(result) {
	var order = TemplateBase.inspectionOrderFromService();
	if(order) {
		return order.getInspectionItemsWithResult(result); 
	}	
};

// AutoEd is an object with a list of all available assets (images, vids and animations)
Template.detailedItem.educationAssets = function() {

    	var itemKey = this.key;
	var assetIds = InspectionGroups.getItemEducationAssets(itemKey);
	
	var itemAssets = AutoEd.assets.filter(function(asset){
		return assetIds.indexOf(asset.key) >= 0;
	});

	var selectedIds = []
	var inspectionOrder = TemplateBase.inspectionOrderFromService();
	if(inspectionOrder) {
		selectedIds = inspectionOrder.getEducationAssetsForItem(itemKey);
	}
	var wrappedItems = itemAssets.map(function(asset) {
		var isSelected = selectedIds.indexOf(asset.key) >= 0;
		return { 
			asset: asset, 
			groupKey: this.groupKey, 
			itemKey:itemKey,
			selected:isSelected
		};
	});
	var result = Template.assemble.isReviewOrReport()?wrappedItems.filter(function(item){return item.selected}):wrappedItems;
	return result;
};

inspectionService.js

// omitted methods for brevity
InspectionService = (function() {

	var wrapDatabaseRecord = function(inspection) {

		return {

			getInspectionItemsWithResult: function(result) {
					var items = [];
					
					InspectionResults.find(
						{ 'result': result, 'inspectionId': inspection._id })
					
					.forEach(function(resultItem) {
						items.push(JSON.parse(JSON.stringify(resultItem)));
						items[items.length-1].key = resultItem.itemKey;
					});
				
				return items;
			},

			getEducationAssetsForItem: function(itemid) {
				var report = inspection.report || {};
				var item = report[itemid];
				if (!item) {
					item = { assets: [] };
				}
				var assets = item['assets'] || [];
				return assets;
			},

			selectPhoto: function(name, selectionFlag) {
				var update = false;

				this.eachPhoto(function(photo) {
					if (photo.photoName === name) {
						photo.selected = selectionFlag;
						update = true;	
					}
				});

				InspectionOrders.update({ _id: inspection._id }, {
					$set: {
						attachments: inspection.attachments
					}
				});
			}
		}

return {

	findById: function(inspectionId) {
		var inspection = InspectionOrders.findOne({ _id: inspectionId });
		return inspection ? wrapDatabaseRecord(inspection) : null;
	}
}

}());

template.html

<template name="assemble">

	... some html

	{{#if educationAssets}}
	<div class="table-row">
		<div class="table-cell">
		  Why it's important:<br>
		  <span style="font-size:70%; font-weight:normal;">Click to view</span>
		</div>
		
		<div class="table-cell">

			{{#each educationAssets}}
			<div class="relative education-asset">
				
				<div 
				  class="checkmark {{#if selected}}selected{{/if}}" 
					data-educationAsset="{{asset.key}}"
					data-item="{{itemKey}}"></div>
				
				<img 
				  class="thumbnail {{#if selected}}selected{{/if}} view-animation" 
				  data-item="{{itemKey}}" 
				  data-assetkey="{{asset.key}}" 
				  src="{{asset.thumbnail}}"/>
				
				{{asset.name}}
			
			</div>
			{{/each}}

		</div>
	</div>
	{{/if}}

	... some html

	<h2 id="additional-findings" class="section-heading">Items Needing Attention</h2>

	{{#each items}}
		<div class="additional-finding critical">
			{{> detailedItem}}
		</div>
	{{/each}}

	... some html

</template>


<template name="detailedItem">

	display a detailed view of the finding
	(HTML removed for brevity)

</template>