Hi, I am writing this in a little bit of desperation for help. I got a new S25 in March and from the start the scrolling was all jittery and jumpy, very uncomfortable the eye. I followed all the suggested actions to correct it but no change. I then did a factory reset as suggested by Samsung online help but it didn't change anything either. I put some settings up higher than normal just to make the scrolling tolerable although still very poor. After visiting a Samsung store where they ran tests it was still doing it. They said they saw something unusual..some apps/processes running as duplicate in background and it might be throttling the apps running. Possibly a hardware issue. It mainly appears to be affecting apps. Most websites scroll fine. After speaking to my original phone shop they eventually gave me a new phone as they also believed it was hardware...but the new phone is doing exactly the same! I started afresh this time so nothing on this phone was transferred from previous phone, all I did was add Samsung and Google accounts. I run the device care and Bitdefender several times a day but no malware issues have ever come up. I have spoken to the technician again but they can't help and customer care say to get another phone from my phone shop, but I am worried it will just happen again and the phone shop are reluctant. I am just interested to see if anyone has encountered similar as this is driving me mad and I rarely use the apps on the phone anymore.