Scrolling in text editor is very slow and laggy on ppc64le

[Sadon Albader]

Tested on Unity, Gnome-Xorg and Gnome-Wayland.
I also tested on several amd64 computers and they all seem perfectly fine. Only occurs on ppc64le for some weird reason.

Edit: Also tested with "--safe-mode" and "-ni", no effect on scrolling speed.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: codeblocks 20.03-3
ProcVersionSignature: Ubuntu 5.4.0-25.29-generic 5.4.30
Uname: Linux 5.4.0-25-generic ppc64le
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
.sys.firmware.opal.msglog: Error: [Errno 13] Permission denied: '/sys/firmware/opal/msglog'
ApportVersion: 2.20.11-0ubuntu27
Architecture: ppc64el
CasperMD5CheckResult: skip
CurrentDesktop: Unity:Unity7:ubuntu
Date: Mon Apr 20 20:20:58 2020
InstallationDate: Installed on 2020-04-09 (11 days ago)
InstallationMedia: Ubuntu-Server 20.04 LTS "Focal Fossa" - Beta ppc64el (20200402)
ProcEnviron:
 LANGUAGE=en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/zsh
ProcLoadAvg: 3.57 2.96 1.59 3/1115 19925
ProcSwaps: Filename Type Size Used Priority
ProcVersion: Linux version 5.4.0-25-generic (buildd@bos02-ppc64el-004) (gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2)) #29-Ubuntu SMP Fri Apr 17 15:05:45 UTC 2020
SourcePackage: codeblocks
UpgradeStatus: No upgrade log present (probably fresh install)
VarLogDump_list: total 0
cpu_cores: Number of cores present = 8
cpu_coreson: Number of cores online = 8
cpu_smt: SMT=4

[Teodor Petrov (fuscated)]

What is the scrolling performance in scite, geany or the stc sample in wxWidgets?
Make a flamegraph using perf? http://www.brendangregg.com/flamegraphs.html
Is the cpu you're testing on comparable to the amd64 ones in (single threaded) performance?