Getting too many slow queries on system.session which impacts mongo db performance as well

I am gettting to may LogicalSessionCacheRefresh queries in mongodb version 3.6.4 , 3 node replica set. Following is the sampls query. How we can fix this ?

Can we drop the config.system.session collections?

pls advise on this as its impacting the our services.

		"desc" : "LogicalSessionCacheRefresh",
		"active" : true,
		"currentOpTime" : "2020-10-23T10:55:26.654+0000",
		"opid" : 1761516478,
		"secs_running" : NumberLong(4),
		"microsecs_running" : NumberLong(4179912),
		"op" : "command",
		"ns" : "config.$cmd",
		"command" : {
			"update" : "system.sessions",
			"ordered" : false,
			"allowImplicitCollectionCreation" : false,
			"writeConcern" : {
				"w" : "majority",
				"wtimeout" : 15000
			},