If I play PUBG Mobile on medium graphics then that's a bit jerky when I move a lot.
Found this video and that does not jerk it so… Probably he has it new and because the performance is always better in the beginning.
Does anyone have tips / tricks on how to improve the performance on the phone? (Ram memory is not full for me either)
Seems to be normal. If you look at the benchmark scores of this phone, you realize that this device does not necessarily reach the highest score, both in a CPU benchmark test and in a 3D test. Huawei's Lite Phones generally have low to normal performance. Unfortunately, you can't expect much in terms of performance.