Lagging issue

Every time while opening the game it will stuck and to load the game taking so long to enter Ingane and when I remove bridges it will stuck like 2 to 3 mins and when I place an bridge it will stuck when I buldoze railway track it will stuck when I built railway track it will stuck when I return my home it will show technical error quit when I built railway station it will stuck when I store it again will stuck what is happening with this game daily I am losing my interest over it