Mobile phones can be compared to minicomputers and so they may also suffer similar disorders. Therefore, some of the reasons as to why your mobile phone is slow and lagging are;
Having a long list of running applications or programs in the background
This occurs after the mobile user has had the phone over a couple of months upon which photos and apps increase. It can be resolved by stopping automatic background processes as well as closing all the background applications
Having a weak battery
This can be fixed by installing lite versions of applications, having a power bank, preferably a 10000mAh would be enough for android phone and replacing the battery.
Having less storage space.
This can be fixed by clearing the phone’s cache, deleting applications and files that are of no use
Having an out of date OS (Operating S System)
This can be fixed by updating the mobile’s operating systems
Getting too hot, overheating
This can be fixed by not using the mobile phone while charging, using applications that do not drain the CPU, installing lite versions of applications and giving your phone a break.
Aging battery, overheating
An aging battery is as a result of prolonged usage which also results in an increase in the battery’s internal resistance due to build-up from the electrode. This wasted energy is emitted as heat that is not good for the phone’s performance.
Another reason that is mostly neglected is the nocebo effect.
This occurs as a result of expectations playing a role in the user’s perception. When these phones are introduced, a notion is instilled that the older devices are of no match to the new ones in speed. The fact still remains, a smartphone slows down over time due to its internal components’ lifespan.