We received 1 x HP All-in-One - 22-b201d which is very laggy. After checking, we noticed that it's running on a i3 7th gen processor which is about 10 years old PC. The PC's memory is running on 4GB + 4GB DDR4 memory. To improve the performance, we replaced 1x 4GB DDR4 ram to a 1x16GB ram and replace the thermal paste to improve the thermal transfer and prolong the CPU lifespan.