Ubuntu 19.10 feels very very lagging. I was using 19.04 and did a fresh install of Ubuntu 19.10 but the new installation is much much slow and lagging. I have a system with 2 Gb of RAM and it was usable with Regolith DE and Ubuntu 19.04. But Ubuntu 19.10 starts hanging after just 4 to 5 Firefox tabs. On disabling swapping, the performance improved but in the absence of swap file, on filling the ram, system not only lags but stucks for ever. Disabling swapping is not a convenient solution for a system with 2 Gb of ram. This lags and hanging when swapping enabled is completely absent in Ubuntu 19.04. Help me to solve the issue or I don't have an option other than downgrading to older 19.04.
SnapOverflow
All of the problems vanished after installing kernel version 5.0. Now my system is very responsive just like it was when I had Ubuntu 19.04. I tried installing the latest kernel and I got less lags than untouched Ubuntu 19.10 but the system was super fine with 5.0. I felt a more stable experience with Version 5.0 than in any other latest kernels.
Update : issue little gone with kernel 5.5.6