‎Latitude e5440 slow boot after adding SSD

Dell Latitude 5440 Review Disassembly Upgrade Benchmark dell latitude e5440 m 2 slot SSD 1 2 OUT OF STOCK Dell Latitude E5440 Core i5-4310U 8GB RAM 128GB SATASSD Laptop Condition Good REFURBISHED Shop All DELL Products dell latitude e5440 m2 slot Latitude E5440? I have integrated graphics card and Express Card Slot Looks like it is supported based on the following from owner's manual

dell sc slot Description ; SSD Form Factor: 2280, Capacity: 1TB, Hard Drive Features: triple-level cell (TLC ; Localization & Layout : US, Features: gesture function,